RBNE - Brazilian Journal of Sports Nutrition

Thermogenic supplements: profile of consumers and possible effects

2025-08-14T10:44:59-07:00

It is usual to observe people looking for methods to achieve the “perfect” body, among them those who resort to physical activity as a way to achieve it stand out. In this process, some use thermogenic supplements in order to speed up metabolism and achieve faster results, but what most do not know is that along with them can come some risks to the health and quality of life of consumers. This is a quali-quantitative survey of consumers through an online questionnaire, which aims to evaluate the profile of consumers and the effects observed during the consumption of these supplements. The same was distributed after approval by the Ethics and Research Committee among contact groups until reaching the desired sample, and only those who signed the Informed Consent Form (TCLE) over 18 years of age could respond. 74 responses fere obtende, of which 42 starters that tem há lareada consume a thermogenic suplemente. Of these 42 participantes, 61.9% fere influencie by frendas o advertisements and only 14.2% received a referral from a professional. According to the data, 73.8% had at least one side effect. With this it was possible to conclude that most consumers were female aiming to lose weight, being observed that thermogenics can be allied to achieve this objective, but most had side effects, with agitation being the most observed.

Relationship between food consumption, supplementation and injuries in flag football athletes in Brazil

2025-08-14T10:44:58-07:00

Introduction: Flag football, a non-contact sport, has grown significantly in Brazil, highlighting the need to understand factors related to athletes’ health, especially musculoskeletal injuries. Nutrition and supplementation play a fundamental role in the prevention and recovery of injuries. Objective: This study aimed to analyze the relationship between dietary intake, supplementation, and injuries among amateur flag football athletes in Brazil. Materials and methods: This is a cross-sectional, quantitative study conducted with 94 flag football athletes, of both sexes, aged between 18 and 60 years, affiliated with the Brazilian Confederation of Flag Football. Data collection was carried out through an electronic questionnaire including information about dietary intake, supplement use, injury history, and training routine. Results: Most athletes reported not following nutritional guidance (78.5%), practicing strength training (65.6%), and having suffered injuries (68.8%), mainly ligament (30.1%) and bone injuries (28.0%). A significant association was found between injuries and creatine use (p=0.012), multivitamin use (p=0.036), and the absence of red meat consumption (p=0.016). Conclusion: A significant association was found between the occurrence of injuries and creatine use, multivitamin use, and the absence of red meat consumption. This suggests that inadequate dietary intake compromises the consumption of essential nutrients for tissue recovery, immune function, and structural integrity, reinforcing the importance of qualified nutritional guidance as a strategy to support health and safe sports practice.

Academic production on bodybuilding in the scopus and web of science databases (1953-2024)

2025-08-14T10:44:57-07:00

Bodybuilding, a competitive modality that values muscular aesthetics, has gained prominence in the gym and sports scene, driven by the growing interest in its practices and consequences. This study aims to map the academic production related to bodybuilding, using the Web of Science and Scopus databases. A bibliometric analysis was conducted, identifying the most relevant journals, the most productive authors, the publication period, the countries that most study the topic, and recurring terms. The results revealed a total of 2,083 articles, with significant growth in scientific production. This study highlights the characteristics of academic production on bodybuilding, promoting a comprehensive understanding of the modality's studies.

Diet, lifestyle and nutritional status of beach tennis players: a study in southwestern Paraná

2025-08-14T10:44:55-07:00

Diet, lifestyle and nutritional status of beach tennis players: a study in southwestern Paraná.

Beach tennis (BT) is a growing sport in Brazil, but there have been few studies on the nutritional profile of its practitioners. The aim of this study was to determine the nutritional profile, eating habits and lifestyle of beach tennis players in the southwest of Paraná, in order to fill scientific gaps and contribute to nutritional strategies. A qualitative-quantitative cross-sectional study was carried out with 152 BT practitioners (64.47% women), recruited at random. Data was collected via an online questionnaire, covering anthropometric variables, body mass index (BMI), socioeconomic variables, food consumption, lifestyle habits and training frequency. Most of the participants were eutrophic (53.95%), aged between 25 and 35 (40.79%) and had a family income of over 5 minimum wages (69.08%). Daily consumption of meat (86.84%) and vegetables (55.92%) was high, while whole foods were consumed occasionally (37.5%). Inadequate hydration (<2L/day) was reported by 65.13%. Supplements were used by 63.15% (creatine: 44.73%). Alcohol consumption was frequent (79.61%), but smoking was low (15.7%). The results indicate partially balanced eating habits, with an emphasis on protein, but deficiencies in fiber and hydration. High income and schooling suggest an elitist approach to sport. The use of supplements was associated with a higher frequency of games, especially in intermediate categories. Despite the predominance of eutrophy, there is a need for nutritional guidance to optimize hydration, reduce consumption of sugars/fried foods and increase fibre. The study highlights the importance of inclusive policies and personalized nutritional interventions, taking into account the socioeconomic profile and sporting demands.

Post-exercise hypotension after maximal intensity exercise and the effect of beetroot on blood pressure response: a randomized clinical trial

2025-08-14T10:44:54-07:00

Purpose: We investigate the effects of a running exercise session until exhaustion on the post-exercise pressure response and to see if beetroot changes this response. Materials and Methods: Normotensive recreational male street runners (39.2 ± 8.6 years, n= 17) performed two running to exhaustion at 80% of VO₂ max: 1-preceded by intake of 140mL of beetroot juice (BET); or 2-control drink (CON). Measurements of blood pressure (BP) were performed at rest, immediately after exercise and every 10 min during 60 min recovery after exercise. Nitrite, malondialdehyde and total antioxidant capacity were measured before, 2 hours after ingestion of drinks and after exercise. Results: The BP decreased in both procedures at 60 minutes post-exercise in relation to the pre-exercise moment: systolic BP (BET: 108.9 ± 8.0 to 95.4 ± 5.1, p <0.05; CON: 109.4 ± 8.5 to 93.4 ± 5.3, p <0.05); diastolic BP (BET: 76.8 ± 6.2 to 66.4 ± 1.5 p <0.05; CON: 75 ± 65.4 to 65.5 ± 1.0, p <0.05), with no difference between procedures. Conclusion: Exercise until exhaustion promotes a significant reduction in BP, but intake of a single dose of beetroot juice before exercise does not promote additional effects on the post-exercise hypotensive response in recreational runners. Trial registration number and date of registration: RBR-9ydn4bn, June 09, 2022.

The influence of social networks on food consumption and physical exercise in adults from the Jequitinhonha Valley and Doce River Valley-MG

2025-08-14T10:44:53-07:00

In recent years, the search for a perfect body has become increasingly popular, leading many people to go beyond their limits in an attempt to achieve a physical appearance imposed by the media. This study aimed to identify the influence of social networks on food consumption and physical exercise among adults in the Jequitinhonha Valley and Rio Doce Valley, Minas Gerais. To this end, a sample of 206 adults, aged between 20 and 59 years old, who practice physical exercise, answered an online questionnaire with objective questions. A large portion of those evaluated (71.8%) follow some type of fitness influencer on their social networks. Of these, 45.2% feel influenced only when practicing physical exercise, 10.6% only when eating, and 44.2% on both. Regarding fad diets, 23.8% reported having followed one or more types. The most adhered to by study participants were Low Carb (42.8%) and Intermittent Fasting (34.6%). The main reasons for following a diet were the desire to lose weight quickly (44.9%) and the search for a healthier lifestyle (42.8%). Nutritionists (49.8%), fitness influencers (36.7%) and friends (32.6%) were the biggest influencers for following fad diets. It was observed that approximately 49.8% of people have already had some type of nutritional monitoring with a qualified professional. It was concluded that the majority of those evaluated follow a fitness influencer on their social networks and are mainly influenced by the practice of physical exercise.

Nutritional parameters of female Rugby athletes

2025-08-14T10:44:52-07:00

Nutrition plays a crucial role for young athletes, as during this phase, adequate energy intake is necessary to meet the demands for growth and development, as well as the physical activity requirements. Given that improper nutrition can lead to various health issues, including an increased risk of injuries, the present study aimed to assess the nutritional parameters in female rugby athletes. This is a descriptive observational study, with a sample consisting of 9 female rugby athletes. To analyze the nutritional parameters, a physical evaluation of the athletes was conducted (weight, height, circumferences, skinfolds, body mass index (BMI), and body fat percentage), and data on their dietary profile were collected through a food frequency questionnaire (FFQ). The average weight was 57.19 ± 9.48 kg, with an average height of 1.59 ± 0.038 meters. The average body fat percentage was 24.68 ± 5.62%, with half of the sample classified as having a body fat percentage above normal. Considering the height-for-age index, all athletes were classified as having adequate height for their age. Regarding the BMI-for-age index, most were classified as eutrophic. Although the athletes reported low consumption of foods considered unhealthy, the intake of healthy foods appears to be insufficient. More nutritional education actions are needed to raise awareness among athletes in this age group, considering that habits and learnings during adolescence influence behavior in many aspects throughout life.

Exercise practioners accompanied by dietitians report less fatigue and hunger when training

2025-08-14T10:44:47-07:00

Combining physical exercise with an appropriate diet is essential for promoting health and well-being, as well as optimizing sports performance. For this, it is important to consult a dietitian, since this professional has the skills and knowledge to adapt the nutrition to the exercise practiced. This study aimed to evaluate the impact of monitoring with a dietitian on the prevalence of symptoms of discomfort during and after physical exercise in adults. The study included n=170 regular practitioners of physical exercise. Participants completed an online questionnaire about lifestyle habits, diet, exercise practice, and related symptoms. For statistical analysis, participants were divided into two groups according to monitoring with a dietitian, and the chi-square and t-tests were used, considering p<0.05. In this study, 44.12% of the participants were monitored by a dietitian. Overall, 74.12% of the 170 participants presented symptoms of discomfort during or after physical exercise. When considering the groups, complaints of symptoms, specifically fatigue/exhaustion and hunger, were less frequent among those monitored by a dietitian (p<0.05). The pre-exercise meal was similar in terms of nutritional value in both groups. However, there was a significant association (p<0.05) between follow-up with a dietitian and: having professional training instruction, longer training experience, use of supplements, and food intolerance. Thus, adequate dietary planning for the needs of the exercise practitioner carried out by dietitians can make a difference in complaints of symptoms related to physical training.

Dietary patterns and body composition of adolescent handball players in Brazil: a chemometric approach

2025-08-14T10:44:51-07:00

This study assessed the body composition and dietary intake of 16 professional handball players from the Associação Caçadorense de Handball. Anthropometric data and dietary intake were analyzed. Statistical methods included a one-sample t-test and chemometric analyses, such as PCA and Pearson correlations. The athletes’ caloric intake (2,192 kcal/day) met energy demands, but carbohydrate (245.90 g/day) and protein (120.09 g/day) intake exceeded recommendations. Water intake (1.67 L/day) was below the recommended 3.3 L/day, potentially affecting hydration. Deficiencies were found in calcium, magnesium, and vitamins D, B6, and E, while iron, zinc, and vitamin C were adequate. Fiber (35.38 g/day) and potassium (2.99 g/day) were insufficient. Skinfold analysis showed an average body fat percentage of 11.22%, considered healthy, but with visceral fat accumulation in the subscapular (12.25 mm) and abdominal (13.92 mm) regions. Suprailiac (10.50 mm) and thigh (15.67 mm) measurements suggested fat distribution patterns relevant to performance. Chemometric analyses revealed a negative correlation between BMI and protein intake (p = 0.018; R = -0.60) and positive correlations between fiber and zinc (p=0.016; R = 0.28), calcium and iron (p=0.03; R = 0.54), and calcium and magnesium (p=0.01; R = 0.65). Although caloric intake and body composition were adequate, micronutrient deficiencies and visceral fat accumulation highlight the need for dietary adjustments. Increasing water and fiber intake is crucial for optimizing health, performance, and recovery. This study provides valuable insights for sports nutrition and fitness professionals.

The perception of omnivorous athletes on the influence and quality of a plant-based diet on sports performance

2025-07-27T06:23:07-07:00

Currently, the plant-based diet has stood out as a significant nutritional option for the population. It is recognized due to its nutritional benefits, such as vitamins, minerals and fiber, and the lower incidence of chronic diseases associated with it. It is also seen as a sustainable option and presents benefits in relation to health and sports performance, which has led more athletes to consider it as a dietary choice. Due to the growing search for healthier and more sustainable eating habits, the research aimed to investigate the perception of omnivorous athletes regarding the viability and quality of plant-based diets in relation to their sports performance, considering their effects on athletic capacity, recovery and health. This is a qualitative, exploratory research with a descriptive objective and was applied using a multiple-choice questionnaire, which was sent via Google Forms to athletes from Rio do Sul/SC. Fifty-eight young omnivorous athletes of both sexes, over 18 years of age and from different sports modalities were evaluated. Data analysis showed that most participants were aware of a plant-based diet, but many did not associate it with improvements in sports performance. However, they were willing to practice it if they knew the benefits. This research contributes to a better understanding of the benefits and challenges associated with adopting this type of diet in the sports context.

Profile of scientific production on creatine supplementation in the Web of Science index database (1950-2024)

2025-07-27T06:23:06-07:00

Introduction: Creatine supplementation is one of the most studied ergogenic substances with proven efficacy in high-intensity intermittent exercise and strength training. Objective: To conduct a bibliometric analysis to identify the most researched topics, the most cited articles, the journals, countries and researchers with the most scientific production on creatine supplementation, in the Web of Science indexing database. Materials and Methods: The keyword “creatine supplementation” was used to search for articles published on this topic in the title, abstract and/or keywords. Data collection was carried out on December 31, 2024. Results: Scientific production on creatine supplementation has seen remarkable growth since the early 1990s, with an exponential increase in the 21st century. The University of São Paulo (USP) in Brazil (n = 178) leads in the number of institutional publications, while the United States (n = 1,364) is the most productive country. The journal Nutrients (n = 226) is the journal with the highest number of published articles, and Darren Candow (n = 70) stands out as the most prolific researcher. The area of Sports Sciences (n = 1,359) concentrates the greatest volume of research. Conclusion: Most of the scientific production on creatine supplementation is focused on improving sports performance. The subject is of global interest, with significant contributions from different countries and researchers.

Analysis of the lifestyle of students in the nutrition and psychology course at a university center located in the zona da Mata Mineira

2025-07-27T06:23:05-07:00

Lifestyle can be characterized as a set of habits and customs of an individual, which impacts their health as a whole and which is influenced by social, economic, cultural factors and according to the type of knowledge they possess. Thus, knowledge about health can directly impact an individual’s lifestyle. Therefore, the general objective was to evaluate and compare the lifestyle of students in the health field, in Nutrition and Psychology courses. The research was carried out through a descriptive study, with a cross-sectional design, with 69 women: 45 from Nutrition and 24 from Psychology. A sociodemographic questionnaire, the International Physical Activity Questionnaire (IPAQ) and the Food Consumption Markers Form of the Food and Nutrition Surveillance System (SISVAN) were used. The analysis resulted in a better level of physical activity among Nutrition students: 35.6% were classified as very active and the same percentage as active; unlike Psychology students, who were classified as 54.2% active and 37.5% insufficiently active B. Regarding alcohol consumption, Nutrition students had higher consumption (82.2%), compared to 54.2% of Psychology students. The highest consumption of instant noodles and stuffed cookies was in the Psychology course, resulting in a consumption of 37.5% and 66.7% respectively. Finally, a high prevalence of students from both courses was observed who reported the habit of consuming food while watching television. It is concluded that a higher consumption of alcoholic beverages and level of physical activity was obtained by the Nutrition course, and a higher consumption of instant noodles and stuffed cookies was obtained by the Psychology course.

Knowledge level and nutritional intake of triathlon athletes from a sports consulting company in the city of Ponta Grossa - Paraná

2025-07-27T06:23:04-07:00

Triathlon is a sport that combines swimming, cycling, and running, and requires not only physical fitness but also proper nutrition to achieve performance. The lack of nutritional strategies represents a significant challenge for athletes, as it influences their performance. This study aims to evaluate the knowledge and nutritional intake of triathletes from a sports consultancy in the city of Ponta Grossa, seeking to understand how nutrition can directly influence athletes' performance. A descriptive and quantitative-qualitative field research was conducted, using a Google Forms questionnaire to evaluate the nutritional status of each athlete. The questionnaire was sent to 50 athletes from the training program, and 27 chose to participate. Data collection occurred from May 23, 2024, to June 30, 2024. Upon completion, the data was analyzed and reviewed, revealing that 70.4% were men and 29.6% were women, with ages ranging from 18 to 55 years. It was also found that 40.7% of athletes do not have nutritional guidance, negatively impacting their sports performance. In addition to data collection, a Food and Nutrition Education (FNE) approach was conducted to promote knowledge about diet and sports, aiming to raise awareness of the importance of nutrition in sports. The results indicate the need for greater awareness of the importance of nutrition for athletes. The study hopes to contribute to a better understanding and appreciation of nutritional strategies in triathlon and sports in general.

Effects of acute creatine supplementation on cognition in university students

2025-07-27T06:23:03-07:00

Introduction: Exogenous creatine can increase phosphate levels in the brain and muscles, optimizing ATP production in times of high energy demand. In addition to improving physical performance, there is evidence that it also influences cognitive processes, such as memory and concentration. Objective: To evaluate the effects of creatine supplementation on cognition in healthy young individuals. Materials and Methods: Double-blind, randomized, placebo-controlled clinical trial with 18 nutrition students (18-59 years old). Participants were divided into two groups: one received 20 g/day of creatine, and the other, 10 g/day of placebo, for 7 days (loading phase). Cognitive function was assessed by the Montreal Cognitive Assessment (MoCA) test before and after the intervention. Statistical analysis was performed with specialized software, maintaining blinding. Results: No significant differences in MoCA scores were observed between the creatine and placebo groups. In the creatine group, the means were 24.9 ±1.68 before and 25.1 ±1.95 after (p=0.736). In the placebo group, 23.4 ±2.12 before and 24.3 ±2.75 after (p=0.832). The comparison between the groups also showed no significant differences (p=0.204 before and p=0.559 after). Conclusion: Acute creatine supplementation did not demonstrate a significant impact on the cognitive function of healthy young individuals. These findings suggest that the cognitive benefits of creatine may be more evident in populations with greater cognitive demands or deficits. Future studies should explore different methodological approaches and supplementation periods.

Use of dietary supplements and nutritional monitoring by gym-goers

2025-07-27T06:23:03-07:00

The present study aimed to investigate the use of dietary supplements and their association with the nutritional monitoring of individuals who attend gyms located in the northern region of Rio Grande do Sul. This study is characterized as a descriptive, cross-sectional, and quantitative research, involving 242 gym-goers. The inclusion criteria encompassed individuals aged between 20 and 59 years, excluding those who did not consent to participate in the study. Data collection was conducted between July and September 2024 using a standardized and pre-coded questionnaire to explore sociodemographic aspects, supplement use, and nutritional monitoring. The data were analyzed using descriptive statistics and association tests, considering a significance level of p<0.05. The results revealed that 69.42% of participants used dietary supplements, with the predominant motivations being hypertrophy and health maintenance. Supplement use was associated with male sex (p=0.018), single individuals (p=0.029), and those who underwent nutritional monitoring (p=0.042). However, 69.05% of the guidance on supplement use was provided by unqualified individuals, demonstrating that even with nutritional monitoring, the use of dietary supplements often resulted from advice given by individuals without proper training. The findings highlight the importance of professional guidance in the safe use of dietary supplements, mitigating health risks and indiscriminate use.

The impact of relative low energy intake on testosterone and cortisol biochemical biomarkers in athletes: an integrative review

2025-07-27T06:23:02-07:00

The concept of Relative Energy Deficiency in Sport (RED-S), introduced in 2014, expanded the Female Athlete Triad to both sexes, resulting in low energy availability and causing hormonal, metabolic and reproductive dysfunctions, negatively affecting health and performance. Therefore, the objective was to conduct an integrative literature review on the impact of low relative energy intake on the biochemical biomarkers of testosterone and cortisol in athletes. Articles regarding the impact of low relative energy intake on the biochemical biomarkers of testosterone and cortisol in athletes on the subject were collected using the PubMed and Web of Science databases, with indexed terms such as "Athletes", "RED-S", "Biomarkers", "Cortisol" and "Testosterone". Of the 15 articles initially found, 8 were excluded, resulting in 7 articles included for the integrative review, covering a total of 267 athletes, 229 men and 38 women, with an average age of around 30 years. Most studies have shown that low energy availability leads to an increase in cortisol and a decrease in testosterone, especially in elite and endurance athletes, highlighting the risks of RED-S and the impact on sports performance and health. Low energy availability negatively impacts hormonal biomarkers, such as increased cortisol and decreased testosterone, particularly in elite and endurance athletes, reinforcing the need for adequate nutritional strategies to optimize performance and prevent the risks associated with RED-S.

Assessment between consumption of protein supplements and symptoms of intestinal dysbiosis in gym practitioners

2025-07-27T06:23:01-07:00

Protein consumption is associated with changes in the intestinal microbiota, and, among gym practitioners, it can be excessive, especially through dietary supplements. Therefore, the present study aimed to evaluate the association between symptoms suggestive of intestinal dysbiosis and the consumption of protein supplements in gym practitioners. This is a cross-sectional, observational study, carried out through an online questionnaire with gym practitioners, aged between 18 and 60 years of both sexes. The questionnaire addressed sociodemographic, health and nutritional issues. To assess the symptoms suggestive of intestinal dysbiosis, the Gastrointestinal Symptom Rating Scale (GSRS) questionnaire was applied. A total of 291 volunteers (78.7% women) were included. Regarding supplement consumption, 88.3% of the volunteers consumed some supplement and 70.4% consumed some protein supplement. The most consumed supplements were creatine, whey protein and glutamine. In the analysis of gastrointestinal symptoms by the GSRS, women had a higher total score and total sum than men (p=0.027 and p=0.037, respectively). Women had more abdominal pain and constipation than men (p=0.010 and p=0.017, respectively). In the correlation analysis, there was no association between gastrointestinal symptoms and the consumption of protein supplements, assessed either by the total GSRS score (p=0.792), the total sum of responses (p=0.901) or the weekly frequency of use (p=0.387). The present study demonstrated a high prevalence of consumption of dietary supplements, including protein supplements, and of gastrointestinal symptoms in gym practitioners, although a correlation between them was not observed.

Effects of whey protein supplementation in elderly individuals with sarcopenia

2025-07-27T06:23:00-07:00

Introduction: Aging is a natural biological process, associated with several changes in body systems, including musculoskeletal, marked by the loss of muscle mass, muscle contraction strength and bone mineral mass. Studies show that the use of whey protein supplementation contributes significantly to muscle preservation and stimulation of protein synthesis in sarcopenic elderly. Objective: To analyze the effects of whey protein in reversing the decline in muscle mass and strength in elderly people with sarcopenia. Materials and Methods: This is a systematic review of the literature, carried out through a search and methodological analysis of scientific articles indexed in the PubMed, Science Direct and Embase databases, through the combination of the following descriptors: "whey protein" and "sarcopenia" and "elderly". After searching and applying the inclusion criteria, 05 articles were selected to compose the review. Results: All studies observed the efficacy of whey supplementation in elderly individuals with sarcopenia. It is necessary to habitually ingest proteins of high biological value, since in appropriate quantities, they help in the protein synthesis of muscles, especially proteins from whey, since these are easily digestible and have a better anabolic response in the elderly. Conclusion: Whey protein supplementation increases lean mass and muscle strength, as well as improves other aspects related to the development of sarcopenia.

Physicochemical analysis and comparison of the composition of whey protein and plant protein supplements

2025-07-27T06:22:59-07:00

The importance of proteins in the human diet is highlighted due to their essential role in physiological and immunological processes. Protein intake through dietary supplements is relevant in situations where regular food intake does not meet the daily nutrient requirements. This project evaluated the labeling accuracy of these supplements and how the protein and other nutrient levels compare to the values declared on the packaging, focusing on two categories: whey protein supplements and plant-based protein sources. Through exploratory and experimental research, proteins, carbohydrates, lipids, ash, and moisture were analyzed in nine supplement samples, divided into concentrate, isolate, and plant-based protein, following ANVISA regulations. Protein quantification was performed using the Kjeldahl Method, while lipids, carbohydrates, and ash were analyzed following specific protocols. The results indicated that 44.4% of the samples showed protein levels lower than those declared on the labels, but within the 20% variation limit established by RDC nº18 (2018). Regarding carbohydrates and lipids, 100% of the samples were non-compliant with the same regulation. These findings contribute to understanding the quality of supplements and their impact on food choices, promoting diversification in the consumption of these products. Moreover, they emphasize the need for rigorous monitoring to ensure compliance with regulations and protect consumers.

Creatine consumption and ergogenic effects on muscle mass gain: a narrative review

2025-05-25T16:16:01-07:00

Creatine (methyl guanidino acetic acid) is a supplement widely used by athletes to enhance performance during training and competitions, gain lean mass, reduce fatigue, among other purposes. This compound is found in certain foods of animal origin, such as beef, pork and poultry; and, to a lesser extent, in eggs and milk. It can also be produced endogenously by a process that occurs in the liver, kidneys and pancreas and subsequently allocated to skeletal muscle to provide energy replacement in high-intensity activities. The objective is to explore the ergogenic effects of creatine supplementation on muscle hypertrophy and performance in high-intensity, short-duration activities, presenting consolidated evidence in the literature. Materials: a bibliographic search was performed in the following databases: PubMed, Scientific Electronic Library (SciELO) and Latin American and Caribbean Literature in Health Sciences (Lilacs), via the Virtual Health Library (VHL), with a time limit of articles published in the last 5 years. Inclusion criteria were considered to be articles with reliable methodologies, such as systematic studies and meta-analyses. For exclusion, the following criterion was adopted: articles older than 5 years and that did not address the proposed theme. The studies, in general, demonstrated that creatine supplementation in sports promoted an improvement in the development of muscle strength, and may also aid in the indirect growth of muscle tissue, preventing the degradation of amino acids that participate in tissue construction. However, further studies are needed to corroborate the current bibliographic statements.

Is there a difference between handgrip strength and biochemical markers in rural workers?

2025-05-25T16:07:24-07:00

Introduction: Handgrip Strength (HGS) can predict various biomarkers, such as muscle levels, nutritional status, physical activity level, and cardiovascular diseases. Objective: To analyze the difference in HGS levels based on biochemical markers among rural workers. Materials e methods: A cross-sectional, analytical, and descriptive study conducted between 2022 and 2023 with rural workers. Glucose and cholesterol levels were obtained through blood tests, and HGS was measured using a hand-held dynamometer with three measurements per hand. Participants were divided into groups according to diabetes classification (No diabetes - ND and With diabetes - WD) and cholesterol levels (Desirable - D and Not desirable - ND). Statistical analysis was performed using SPSS software, with the Shapiro-Wilk test for normality and Student’s t-test (parametric data) or Mann-Whitney U test (non-parametric data), with significance set at p ≤ 0.05. Results: The sample consisted of 110 rural workers, with 93 allocated to the ND group and 17 to the WD group. When glucose, age, and HGS of the left hand were analyzed, no statistical difference was found between the groups. Glucose (p<0.001) and HGS of the right hand (p=0.020) showed significance between the groups. Regarding total cholesterol, the D group had 36 individuals, while the ND group had 74. Only total cholesterol showed a statistical difference (p<0.001). Conclusion: There was no difference between HGS and total cholesterol, but HGS of the right hand showed a significant difference between the groups.

Anthropometric profile, nutritional status and body composition in schoolchildren who practice and do not practice futsal

2025-05-25T13:53:48-07:00

This study aimed to measure the anthropometric variables of schoolchildren who practice and do not practice futsal, evaluating their nutritional status and body composition. The research was conducted between February and December 2023 with 851 students from schools in Anapurus, Brejo, and Buriti, Maranhão. The sample was divided into 250 futsal players and 601 non-players. Variables such as total body mass (TBM), height, BMI, body fat percentage (BFP), fat mass (FM), and fat-free mass (FFM) were collected, along with the classification of nutritional status and body composition. The statistical analysis included the Student's t-test for group comparisons. The results indicated that, although the differences in anthropometric characteristics between futsal players and non-players were not statistically significant (p<0.05), futsal players showed a more balanced body composition profile, with lower body fat percentage and higher lean mass. Furthermore, futsal players had a lower prevalence of malnutrition and overweight. In conclusion, although futsal practice did not show significant differences in anthropometric variables, it is associated with a healthier body composition and may be beneficial in preventing nutritional problems. This suggests that regular futsal practice contributes positively to the overall health of schoolchildren.

Nutritional approaches and supplementation among amateur street runners: a descriptive analysis

2025-05-25T13:35:36-07:00

Introduction: Running requires a lot of nutrient replacement, requiring an adequate intake of macro and micronutrients, which are fundamental components for the functioning of the body and for muscle recovery. Objective: to verify the eating habits, as well as the use of ergogenic resources and food supplements in amateur street runners. Materials and methods: The research was conducted with 100 participants, where a sociodemographic questionnaire, the Food Consumption Markers Form of the Food and Nutrition Surveillance System (SISVAN) and a questionnaire on the use of ergogenic resources and food supplements were applied. The data were analyzed descriptively through the distribution of absolute and relative frequencies. Results: Runners lead a healthier lifestyle, with 76% controlling their diet. It can be seen that 54% of the volunteers are aware of Ergogenic Resources and Food Supplements, 60.5% report that they received information from a nutritionist about both, and 66.7% use them based on nutritional or medical recommendations. Their use is seen as a strategy to improve performance, with the most well-known and used supplements within the research group being creatine (92%) and whey protein (77%). Conclusion: Amateur runners lead a healthier lifestyle, where they control their diet and maintain a weekly training frequency, using ergogenic resources and food supplements with the aim of improving performance in training.

Effects of gamma aminobutyric acid supplementation associated with physical exercise on cardiovascular responses and subjective perception of effort in obese women

2025-05-25T13:23:35-07:00

Gamma-aminobutyric acid (GABA) is an inhibitory amino acid in the central nervous system, with the premise of being a supplement to enhance physical recovery. Among the investigated actions is it possible to cite: reductions in blood pressure, improved sleep quality, and reduced anxiety levels. Objective: To investigate the effects and benefits of oral GABA supplementation combined with physical exercise on responses to physical effort during 12 weeks of combined training (aerobic and strength) in women with obesity. The study included 26 female volunteers aged 18 to 59 years with a BMI ≥ 30 kg/m², which were randomized into two groups: GABA and placebo. The combine physical training was carried out for 12 weeks, on three alternating days for 50 minutes. Heart rate (HR) during the exercise session was measured using a heart rate monitor, and subjective perceived exertion (RPE) was assessed on a scale of 0 to 10. Results and Discussion: GABA supplementation did not result in significant differences in RPE between the placebo group (RPE=6) and the GABA group (RPE=7). There were also no significant differences in HR between the groups (placebo: 146 bpm, and GABA: 148 bpm). The participation rate was 88.9% for the GABA group and 84.3% for the placebo group. The 12 weeks of combined training associated with GABA supplementation did not affect the RPE and HR of women with obesity.

Relationship between food consumption, body composition and anxiety in physical exercise practitioners

2025-05-25T13:11:53-07:00

Introduction: Anxiety is a psychological disorder that affects a large part of the Brazilian population. This disorder affects several areas of the patient's life, and may be correlated with heart problems, weight gain, social interaction and even depression. Its treatment is associated with interventions involving physical exercise and, mainly, dietary balance. Objective: Identify the prevalence of anxiety disorder in physical exercise practitioners and relate it to eating patterns and body assessment. Materiais and Methods Study with a quantitative approach, with a cross-sectional design, 109 adults who practice physical exercise. The dependent variable was anxiety and the food quality index and the explanatory variables were: gender, education, BMI, physical exercise and type of exercise practiced. The Chi-square association test was used, adopting a significance level of 0.05. Results: There was a significant association between the severity of anxiety and perception of eating, with greater dissatisfaction among individuals with severe anxiety. Among participants with mild anxiety, 96.6% reported excellent nutrition, while 40% of severe cases rated it as good. Conclusion: The study identified greater vulnerability to anxiety in women and young people, in addition to an association between greater severity of anxiety and food dissatisfaction, while BMI and physical activity did not show a significant relationship.

The impact of social networks on the diet of female bodybuilders

2025-05-25T13:02:34-07:00

Introduction: The impact of social media on the perception of diet among female bodybuilders has become a relevant phenomenon, given the growing influence of these platforms on everyday life. Women use these platforms to seek dietary inspiration, however, along with access to useful information, there is also the risk of exposure to unrealistic body standards and extreme diets that can compromise health and well-being. Aim: To assess the impact of social networks on women's food choices and body perceptions, taking into account aesthetic pressure and social comparison. Materials and methods: The research was exploratory and quantitative in nature, using an online questionnaire applied to a sample of 28 women aged between 18 and 30. Results: The majority of participants (60%) reported following digital influencers and/or nutrition experts and/or nutritionists, 82.1% felt influenced by social networks in their food choices, 60.7% reported feeling pressure to follow dietary patterns promoted online and 53.6% compared their own meals with posts on social networks. Conclusion: Analysis of the data suggests that while social media can offer useful information on healthy eating, it also promotes unrealistic aesthetic standards that can result in harmful eating behaviors. The findings reinforce the need for a critical eye on the content consumed on social media and the importance of professional guidance to avoid the negative effects of aesthetic pressure and social comparison on women's food choices and well-being.

Determinants of karatecas’ food choices: The health and performance dichotomy

2025-05-25T10:17:25-07:00

Aiming to understand the determinants of karate athletes’ food choices and to identify the influence of sport on decision-making, 40 athletes participated in this quanti-qualitative cross-sectional study, answering the validated Brazilian version of the “Food Choice Questionnaire” and open questions about nutritional strategies for competition. Health, convenience, and price were the most important factors regarding their food choices, with no difference between men and women. Sports characteristics influence pre-competition strategies, having been reported an acute decreased food intake and the adoption of dehydration strategies, but also a gradual food control. After competition, both in victory and defeat situations, foods that bring pleasure, reward or comfort are chosen. The complex process of karate practitioners' food choices must be considered in order to adapt nutritional guidelines to their reality, contributing to their performance and health.

Profile of Tereré (Ilex paraguariensis) consumption by street runners in Campo Grande-MS

2025-05-25T10:08:45-07:00

Tereré, a traditional beverage from Brazil and Paraguay, is prepared with cold water and yerba mate (Ilex paraguariensis) and contains bioactive compounds, such as caffeine and theobromine, with the potential to enhance physical performance. However, the consumption profile of this beverage among athletes remains unknown. This study aimed to analyze the consumption profile of Tereré among street runners. A cross-sectional study was conducted with 102 amateur and professional runners from Mato Grosso do Sul, Brazil (2022), comprising 74 men (72.5%) and 28 women (27.5%), aged between 21 and 74 years (mean age: 37 ± 9.8 years). Data were collected through a self-administered questionnaire addressing consumption habits and their relation to training. The results indicated that approximately half of the athletes (n=52) regularly consumed the beverage. Among these, most used pure yerba mate (n=35), consumed it socially (n=39), sporadically (n=25), and once per day (n=41). However, few athletes associated its consumption with sports performance, with only 9.6% (n=5) reporting the use of Tereré before training. In conclusion, although Tereré is widely consumed in the region, it is underutilized as an ergogenic resource by street runners, highlighting the need for further studies on its potential benefits in this context.

Consumption of food supplements for ergogenic purposes by exercise people in bodybuilding and Crossfit® academies in Blumenau-SC

2025-05-25T09:48:04-07:00

The growing concern with aesthetics and physical performance has increased the use of dietary supplements for ergogenic purposes in recent years, especially among practitioners of intense physical exercise such as Crossfit®. This study aimed to evaluate the objectives of using dietary supplements ergogenic aids by physical exercise practitioners, as well as the prevalence of this use and the professional guidance involved, in bodybuilding gyms and Crossfit® boxes in the city of Blumenau, SC. This is a quantitative cross-sectional survey with 172 participants, carried out between June and September 2024. Data were collected using a self-administered digital questionnaire. The majority of respondents (65.11%) use dietary supplements, with creatine (62.21%) and Whey Protein (59.3%) being the most consumed. The combination of both was 39%. Nutritionists were mainly responsible for recommending supplements (47.49%), followed by their own initiatives (23.46%). The main objectives of use were to gain muscle mass and strength (32.49%), followed by improving performance (32.13%). The survey revealed that 49.42% of participants exercise three to five times a week, and 28.49% more than five times a week. It is concluded that, despite the increase in recommendations by nutritionists or doctors, there is still a high prevalence of self-supplementation, recommendations from friends and personal trainers. Greater inclusion of nutrition professionals in these environments is recommended, in addition to public policies aimed at raising awareness among the population.

Innovation in post-workout recovery: development of an edible green tea gel as a post-workout strategy

2025-04-02T05:06:49-07:00

High-intensity exercise is associated with a significant increase in the production of reactive oxygen species (ROS). The increased activity of the mitochondria increases energy consumption during intense exercise, creating an imbalance between ROS production and the body's antioxidant capacity. Some plants contain phytochemicals that can act as antioxidants, such as green tea (Camellia Sinensis), which can also have an anti-inflammatory effect. The aim of this study is to develop and characterize an edible gel containing a dry extract of green tea for the control of oxidative stress and muscle recovery after intense physical activity. The methodology used to conduct this study consists of the preparation of the edible green tea gel, the macroscopic and microscopic evaluation of the formulation and the evaluation of physical and microbiological stability by centrifugation test, exposure to different temperatures and counting of viable microorganisms. The results showed that the formulation showed no visual change after 48 hours. No changes occurred after centrifugation and when stored at different temperatures, the conditions of 8 and 25 ºC showed the best results. As for the microbiological test, no growth of bacteria or fungi was detected in the media for these microorganisms. The analyses showed that the physical and microbiological properties of the gel were maintained even after a series of evaluations. As an improvement, the addition of stabilisers is recommended to increase the gel's resistance to high temperatures.

Omnivore diet vs vegan diet for lean mass gain a systematic review

2025-04-02T05:09:42-07:00

The article addresses the effectiveness of animal and plant-based proteins in building muscle mass, in a context of increasing adherence to vegetarianism in Brazil and worldwide. The systematic review included 10 studies, revealing that the majority (80%) indicate that animal proteins are more effective due to their greater bioavailability and complete profile of essential amino acids. Plant-based proteins, although they have benefits such as better digestibility and affordable cost, may be less effective in promoting muscle protein synthesis (MPS). However, some research suggests that combinations of plant-based proteins, such as soy, may offer nutritional advantages. The main findings show that an adequate intake of high-quality proteins is crucial to maximize muscle gain, especially in populations such as the elderly, who may benefit from preventing sarcopenia. In conclusion, while animal proteins favor muscle mass gain, the inclusion of plant-based sources may be useful in balanced diets. The research highlights the need for more studies on the effectiveness of plant-based proteins to enrich the understanding of the subject.

Phase angle and body composition: markers of physical performance in mountain bike athletes

2025-04-01T17:12:20-07:00

Introduction: This study aimed to investigate the relationship between Phase angle (PhA) and body composition parameters with physical performance in national-level Mountain Bike (MTB) athletes. Materials and methods: Eighty-three male MTB athletes (age: 39.6 ±11.5 years) participated in the study. Body composition was assessed using a multi-tactile bioimpedance analyzer (InBody S10), while performance was evaluated through handgrip strength, standing long jump, and race completion time during a 75 km competition. Pearson’s correlation was used to assess relationships between PhA, body composition, and performance variables. Results: Higher PhA values were associated with better handgrip strength (r >518; p<0.001), standing long jump performance (r=0.504; p=0.001). Notably, athletes with higher PhA completed the race in less time (r=-0.488; p<0.001). Secondarily, body fat, skeletal muscle mass, total body water and extracellular water rate were significantly associated with handgrip strength, standing long jump performance and race time (p<0.001). Conclusion: PhA, as well as body composition parameters including body fat, skeletal muscle mass, total body water, are promising markers of muscle strength and performance in MTB athletes. Therefore, these variables could be integrated into training programs to contribute to monitoring muscle integrity and optimizing athletic performance.

Differences between the sexes in the association between diet and lifestyle habits with complaints of discomfort during physical exercise: women report more symptoms more frequently

2025-04-01T17:03:53-07:00

This study investigated gender differences in the association of symptoms during physical exercise with nutrition and lifestyle habits in adults. A total of 170 adult exercisers of both genders participated in this study. Participants completed an online questionnaire on the Google Forms platform, in which personal data, exercise habits, dietary habits, and symptoms of gastrointestinal discomfort, neuromuscular discomfort, and mood-related complaints during or after exercise were assessed. For statistical analysis, participants were grouped by gender: 51.76% (n=88) were female and 48.23% (n=82) were male, and the chi-squared or t tests were used, considering p<0,05. The results showed that 44.12% of participants were female and reported symptoms of discomfort during training. Symptoms such as drowsiness, dizziness, nausea, and flatulence were significantly more related to the female gender (p<0.05). The results show these symptoms could be attributed to physiological differences between the sexes, dehydration, use of dietary supplements and medications, and higher lipid intake before female training (p<0.05). Premenstrual and menstrual periods also showed an influence on exercise practice and gastrointestinal symptoms in the female group. It was concluded that female exercise practitioners were more sensitive to discomfort during training influenced by diet and other lifestyle habits. Further studies are needed to investigate the causes of this discomfort and ways to minimize it, especially in female athletes.

Evaluation of nutritional status and food intake of teenage swimming athletes in a municipality in Ceará

2025-04-01T14:16:33-07:00

Swimming is a predominantly aerobic sport that requires high energy demand, and adolescence is a phase marked by several body changes. The objective of the study was to evaluate the nutritional status and food consumption of adolescent athletes from the swimming team of the municipality of Jaguaruana-CE. This is a cross-sectional and descriptive study carried out with adolescent swimmers. A questionnaire containing questions about identification, sports practice and food consumption (three-day food record) was applied, in addition to the collection of anthropometric data. Twenty-six athletes participated in the study, 14 boys and 12 girls, with a mean age of 14.4 ± 3.24 years. The evaluated athletes had a mean Body Mass Index of 21.19 ± 3.83 kg/m2 and a mean body fat percentage (%BF) of 22.15 ± 5.89 %, classifying the majority as eutrophic and with an excellent %BF, respectively. The athletes had a low-calorie (88.46%), low-carbohydrate (84.62%), high-protein (53.85%) and normal-lipid (84.62%) diet. High levels of micronutrient inadequacy were also observed, especially calcium, iron, vitamin A and B vitamins. These results highlight the need for nutritional intervention to promote healthier eating habits among swimmers, aiming to optimize sports performance and general health.

Effects of diet and physical exercise on sleep quality in active individuals: an integrative review

2025-04-01T09:12:02-07:00

Introduction: Sleep is a physiological function that can be altered by several factors, of which diet and physical activity stand out in positive outcomes. Objective: To systematize knowledge about the effects of diet and physical activity on the quality of sleep in physical activity practitioners. Materials and Method: Integrative literature review with the search carried out in the PUBMED, CAPES and Science Direct databases, applying the controlled health descriptors and Boolean operators: “Resistance Training” AND sleep AND diet, with the inclusion criteria being original, complete articles available online published in Portuguese, English and Spanish that have been carried out on individuals over 18 years of age practicing non-athlete physical activity between January/2019 and September/2024. Results: The sample consisted of six articles that pointed out the importance of adequate dietary guidance associated with resistance training contributing to improved sleep quality. Conclusions: The findings were unanimous regarding the importance of proper nutrition combined with physical activity contributing to improved sleep quality in the populations studied.

Nutritional profile and prevalence of musculoskeletal injuries in young contemporary dancers

2025-04-01T09:04:05-07:00

Introduction: Contemporary dancers demand physical needs specific to the modality, among which the particularities relating to musculoskeletal overload, nutritional and behavioral dysfunctions stand out. Objective: To evaluate the nutritional profile of contemporary adolescent dancers and the prevalence of musculoskeletal injuries. Materials and methods : The study implemented a cross-sectional survey with a quantitative approach. A sample of 68 dancers were evaluated using questionnaires (sociodemographic and health profile); of the variables weight, height, waist circumference and fat percentage. Furthermore, the Nordic Musculoskeletal Questionnaire was used to assess the prevalence of injuries. Results: The nutritional situation of the dancers regarding body composition and BMI/age was adequate in 80.9% and 63.2% of the participants, respectively. Additionally, among the musculoskeletal injuries reported by contemporary dancers, the knees (18.9%) and the lumbar region (17.7%) stand out, and among the injuries that limit daily activities, dancers highlighted the knee region (22 .5%), ankles and/or feet (20.4%), as the most affected. Furthermore, anthropometric parameters were insignificant for the prevalence of limiting injuries among contemporary dancers (p=0.28) and (p=0.54), as well as dance hours (p=0.55) and practice of extra physical activity (p=0.21). Conclusion: A large portion of contemporary dancers are in compliance with anthropometric parameters, which did not show a significant difference when associated with general and disabling injuries.

The impact of the covid-19 pandemic on the increase in obesity among university students

2025-04-01T08:55:35-07:00

Introduction: The Covid-19 pandemic and restrictive measures to slow coronavirus transmission have led to important social changes that may influence and modify eating habits due to new behaviors contributing to the increase in obesity. Objective: To analyze the impact of the COVID-19 pandemic on increased obesity in university students. Materials and methods: Cross-sectional, descriptive, quantitative, convenience sample study with university students from a university center in the city of Fortaleza-CE. Data collection was performed through a semi-structured online questionnaire composed of questions related to sociodemographic aspects, life habits and health conditions. Results: The results suggest an increase in health risk behaviors. A decrease in physical activity practice was reported, a considerable increase in time in front of screens and consumption of ultra-processed foods. Regarding the current health situation, 61.8% of the students were overweight (overweight and obese), 29.6% reported having some type of comorbidity and 61.7% noticed a worsening in health status during the pandemic. Conclusion: The prevalence of inadequate eating practices, sedentary behaviors and physical inactivity in university students increased during the COVID-19 pandemic.

Dietary calcium intake and body composition of athletes at an figure skating school in São Paulo

2025-04-01T08:48:38-07:00

Introduction: Studies on nutrition and body composition of skaters are scarce in Brazil. The increased demands of the sport make it essential to evaluate the diet of teenage skaters, especially calcium intake, seeking to prevent bone demineralization and fractures. Objective: To evaluate the calcium intake and body composition of teenage skaters from São Paulo. Materials and methods: Cross-sectional study carried out with 10 adolescent athletes from São Paulo from a figure skating school. Height, weight and percentage of body fat were measured using a bioimpedance measurement scale (Tanita®). The indicators Body Mass Index by age and height by age were evaluated. The percentage of fat was classified according to Lohman, Roche and Martorell (1988). Calcium intake was assessed based on a usual eating day, according to the Brazilian Food Composition Table and food labels. The results were compared to the recommended daily intake (RDA) of calcium (1,300mg/day). This research received ethical approval - CAAE58876822.0.0000.0084. Results: The average age of the participants was 15.08 years (SD=2.21). The average height was 1.61m (SD=0.07), the average weight was 56.55kg (SD=12.08) and the BMI was 21.81kg/m² (SD=3.18). According to the BMI/A indicator, 20% of the skaters were obese and all had adequate height for their age. The average body fat percentage was 27.13% (SD=5.84), classified as moderately high. No skater reached the recommended calcium intake, with an average intake of 604.37mg/day. Conclusion: Low calcium intake and high percentages of body fat make nutritional monitoring of the skaters studied essential.

Machine learning classification of consumption habits of creatine supplements in gym goers

2025-04-01T05:30:04-07:00

The aim is to identify usage patterns and the main factors that influence creatine supplementation, providing a basis for future educational interventions and recommendations for safe and effective use. The study was applied to gym goers in Bragança, where a QR code for a survey was released. 158 people participated, 65 non-consumers of creatine supplementation (37.34% men; 22.78% women) and 95 consumers (15.19% men; 24.68% women). Five machine learning algorithms were implemented to classify creatine consumption in gym goers: Logistic Regression, Gradient Boosting Classifier, Ada Boost Classifier, Xgboost Classifier. K-folds cross-validation was implemented to validate the machine learning performance. There was an increased proportion of females with considered themselves not sufficiently informed about the creatine effects/side effects (22.2%) in comparison to males (8.47%), p=0.03. The AdaBoost classifier exposed the best overall performance (86%) in classifying overuse of creatine in gym goers based on their Smoke habits (r = 0.33), grams of creatine used per day (r = 0.50) and lack information about the side effects of creatine intake (r = -0.33). The K-folds method validates the results with very good performance (86%). In conclusion, the five machine learning methods employed well characterized the overuse of creatine in gym goers based on smoke habits, grams of creatine per day, and lack information about the side effects of creatine intake.

Factors associated with the nutritional status of children aged 7 to 12 years: physical exercise, food consumption and sleep

2025-02-16T09:23:22-08:00

Introduction and Objective: Obesity is considered a public health problem, affecting children as well. The objective of the study was to identify factors associated with the nutritional status of children aged 7 to 12 years, such as physical exercise, food consumption, and sleep patterns. Materials and Methods: The study included children (7-12 years old) of both sexes, who play soccer in a social project in Eusébio-CE. The evaluation included anthropometric measurements, the application of a food frequency questionnaire, and assessments of sleep and exercise habits. Results: The sample consisted of 46 children, with an average age of 9.8 ± 1.65 years, predominantly male (95.7%). The average BMI (kg/m²) by age was 20.4 ± 5.39 kg/m², with more than 50% of the participants being overweight. Regarding sleep hours, 54.35% of the children had an average of insufficient sleep hours, but this data did not show a significant association with the studied variables, including food consumption and anthropometric diagnosis (p>0.05). No statistical significance was observed between soccer practice time and anthropometric diagnosis. However, in the analysis of food consumption, a significant association was observed between food consumption and anthropometric diagnosis in the item cauliflower (p≤0.05). Conclusion: The present study found no association between factors such as physical exercise, food consumption, and adequate sleep patterns with the nutritional status of children aged 7 to 12 years. However, a high percentage of overweight children was identified.

Effect of usual diet on the muscle strength in well trained men

2025-02-16T09:14:53-08:00

Strength training is a widely recommended practice to provide significant health benefits. Using this protocol, it is possible to manipulate the training load through its volume and intensity components. Proper manipulation of these components can promote adaptive responses, such as muscle hypertrophy. These benefits can be enhanced or hindered depending on the composition of the usual diet. The present study evaluated the possible associations between the consumption of macronutrients from the usual diet and performance in the maximum repetition test (MR) performed at 60% and 80% of a maximum repetition (1MR). Healthy men (n=14) aged 40.81 ± 5.77 years, weight 85.37 ± 10.61 kg and height 174.5 ± 5.89 cm, took part in this study. The exercises used were the bench press, the 45º leg press and the anterior pulley. The protocol consisted of four sets of maximum repetitions (MRs) at 60% of 1MR and 80% of 1MR. Total daily dietary macronutrient consumption was 47% carbohydrates, 22% proteins and 31% fats. There was no correlation between carbohydrate consumption and performance at 60% (p=0.4490) and 80% (p=0.6648), protein consumption and performance at 60% (p=0.2917) and 80% (p= 0.3300) and lipids at 60% (p=0.3139) and 80% (p=0.3108). Conclusion: The amount of carbohydrate in the usual diet did not correlate with performance in the strength endurance task.

Nutritional status and cardiovascular risk in bodybuilders

2025-02-16T09:04:14-08:00

Cardiovascular diseases (CVD) are the main cause of death worldwide, and usually occur in underdeveloped countries, low and middle income. Among the risk factors for CVD, are behavioral factors such as unhealthy diet, smoking, physical inactivity and alcohol consumption, because they can increase the common cardiometabolic risk, as hypertension, hyperglycemia, dyslipidemia, overweight and obesity. Epidemiological studies show that the practice of aerobic physical activity can be promising in the prevention and treatment of hypertension, as well as reducing cardiovascular risk and mortality. The objective of this research was to evaluate the nutritional status and cardiovascular risk in gym weight training practitioners from the interior of Piauí. The sample was non-probabilistic, for convenience, composed of 100 individuals who attended weight training and voluntarily agreed to participate during the research period. The results showed that 53% were eutrophic, 40% overweight and 7% obese. Cardiovascular risk was low, using different indices: the neck circumference, waist circumference isolated and waist-hip ratio. The study showed that bodybuilding practitioners presented, in their majority, eutrophication, normal blood pressure levels and low cardiovascular risk, analyzed by differentiated parameters. However, it is important to highlight that a significant percentage of the individuals were overweight, indicating a more thorough monitoring of the nutritional status of this population.

Consumption of food and dietary supplements by CrossFit® practitioners at a training center in Blumenau-SC

2025-02-16T08:18:44-08:00

Regular physical exercise and adequate nutrition are essential for improving health and performance, especially in high-intensity activities that may require supplementation to meet nutritional demands. The aim of this study was to evaluate the consumption of food and supplements by CrossFit® practitioners at a training center in Blumenau-SC. This is a descriptive, quantitative, and cross-sectional study conducted with 144 adult individuals, both sexes, using digital forms with open and closed questions to collect data on physical activity, self-perception of performance, eating habits, food consumption through the food frequency questionnaire, and use of supplementation. For statistical analysis, p<0.05 was adopted as significant, according to the nature of the variables for parametric or nonparametric tests. The mean age found was 31.98 ± 6.63 years and the majority of participants were women (59.03%). 50% (n=72) have been practicing CrossFit® for more than 2 years, and report good self-perceived performance (46.5%) and intensity (55.6%) of the activities practiced. Regarding eating habits, 44% have nutritional monitoring, 54.86% follow a diet, and demonstrated a high frequency of consumption of protein-rich foods. Low consumption of ultra-processed foods and high consumption of natural or minimally processed foods were observed. Supplement use was observed in 77.77% of these individuals, 33.9% of whom were not recommended by qualified professionals. The high adherence to nutritional monitoring and the dietary profile suggest that practitioners seek a healthier diet, recognizing the benefits of appropriate dietary interventions.

The effects of resistance training on overweight: a bibliometric analysis

2025-02-16T08:09:12-08:00

Objective: The aim of this study is to provide a thorough bibliometric analysis of resistance training methods in populations that are overweight. The objective is to present a comprehensive analysis of the present status of research on this particular topic and provide valuable recommendations to practitioners who are involved in this area. Materials and methods: We conducted a comprehensive analysis of the scientific literature on resistance training in overweight populations, covering the period from 1995 to 2024. A comprehensive search was performed in the Web of Science database using the keywords "resistance training" and "overweight." The search encompassed all pertinent information contained within the articles. The data were produced in BibTex format and then entered into the Bibliometrix program for analysis. Results: The examination showed that 60 countries and 281 periodicals published the 666 papers analyzed in this study between 1995 and 2024. Notable magazines include "Medicine and Science in Sports and Exercise" and the "Journal of Strength and Conditioning Research." The results also indicate substantial author collaboration and strong cooperation across countries, with the United States, Canada, Brazil, Australia, and Iran being the primary collaborating nations. Conclusions: Given the persistently high incidence of overweight, it is imperative to investigate exercise treatments that are effective. Recent research has indicated a growing interest in using resistance training as a means of addressing overweight issues. This upward trend is projected to persist in the future. This emphasizes the gravity of obesity as a matter of public health and showcases the efficacy of resistance training as an intervention strategy.

Consumption of dietary supplements and stimulants by practitioners of physical activity in a gym in Minas Gerais

2025-02-13T16:12:19-08:00

Introduction: The consumption of dietary supplements and stimulants is increasing, however, use without correct guidance can cause harm to health. Objective: To analyze the consumption of dietary supplements and stimulants by physical activity practitioners in a gym in Minas Gerais. Materials and Methods: A self-administered questionnaire was used containing questions related to training and the consumption of dietary supplements and stimulants. Results: 182 individuals participated in the study, mean age 33.5 ±9.7 years, 51.4% female. Of these, 51.9% had practiced physical activity for more than three years; weekly frequency of three to four days (38.8%); and duration of thirty to sixty minutes (53%); 48.6% considered training intense and 75.1% had the objective of improving quality of life. Of these, 77.1% used or had already used dietary supplements (75% whey protein and 78.3% creatine). Information about these substances was obtained from a nutritionist (72.3%) and the internet (60.7%). Whey protein was most consumed after training and creatine before, associated with the objective of improving health and gaining strength. Of the participants, 51.7% were or had previously used stimulants (coffee 57.6% and caffeine 54.2%). Where, 40.8% noticed deleterious effects and reported reduced sleep (57.1%) and decreased fatigue (38.15). Conclusion: Adequate education and guidance on dietary supplements and stimulants are essential to ensure the safety and well-being of individuals, with the nutritionist being the professional qualified to assess the need, guide and monitor the appropriate use of these products.

Analysis of changes in body composition in Crossfit® practitioners with different carbohydrate distributions in the diet

2025-02-13T16:02:21-08:00

Crossfit® has been standing out worldwide with its training program that involves high-intensity exercises and aims to develop physical fitness. Thus, method has nutrition as one of its pillars, using the Zone diet as a basis for practitioners. However, this diet is lower in carbohydrates than most guidelines, therefore, this study aims to evaluate the improvement in sports performance and body composition of CrossFit® practitioners from a box in Itajaí-SC, with different distributions of carbohydrate (CHO) in the diet. It was a longitudinal crossover study lasting 60 days. Data collection took place in 3 face-to-face meetings for body assessment using bioimpedance and performance assessment using a sequence of exercises called Fight gone bad. Participants were divided into 2 groups, with 40-45% or 60-65% CHO in the diet. The results demonstrated statistical significance for performance improvement only in Sumo exercise when the diet was high in CHO. Regarding body composition, quantitative results demonstrated that a high or low carbohydrate diet does not significantly influence the body composition of Crossfit® practitioners. However, the qualitative results demonstrated that throughout the study participants felt improvements in physical aspects of strength and endurance. It is concluded that a high-carbohydrate diet can be an interesting strategy for improving aerobic performance in CrossFit®, and improving quality of life through a healthy diet combined with physical exercise. New research is suggested with longer intervention time, greater number and diversity of participants.

Use of anabolic agents and the underlying motivational factors in bodybuilders

2025-02-13T15:53:55-08:00

Introduction and objective: As the pursuit of physical excellence and social pressure to achieve unattainable aesthetic standards increases, the exacerbated use of anabolic steroids grows. Indiscriminate use of anabolic steroids, however, can lead to a number of serious side effects and health risks. The objective of this study was to analyze the real factors that lead bodybuilders to use anabolic steroids in two gyms in the city of Montes Claros- MG. Materials and methods: A descriptive study was carried out, with a quantitative and cross-sectional approach. The sample consisted of 29 individuals, aged 22 to 42 years, practitioners of bodybuilding. A validated questionnaire of Patrício (2012) was used with modifications applied in person by the researchers themselves. Results: The main reason reported for the use of these substances was the increase of muscle mass, and most of those evaluated showed satisfaction with the results obtained, using injectable anabolics and under the guidance of a professional. Conclusion: It was concluded that there was a significant use of anabolic steroids for muscle mass gain and that all participants were satisfied with the results obtained, despite a considerable time of use, which shows a risk of dependence associated with the use of these substances.

Knowledge about healthy eating and use of supplements among beach tennis practitioners

2025-02-13T14:29:21-08:00

Introduction and Objective: Food supplements have gained popularity in Brazil, especially among those who practice physical activities such as Beach Tennis (BT). This study aimed to evaluate knowledge about healthy eating and the use of supplements among BT practitioners in Montes Claros-MG. Materials and Methods: The study was descriptive, with a quantitative and cross-sectional approach. 32 BT practitioners, aged 18 years or over, randomly selected, participated. It was used an adapted questionnaire, covering sociodemographic information, eating habits, supplement consumption and nutritional knowledge. Results: The participants demonstrated significant understanding of nutrition, although errors occurred regarding the main macronutrient and fruit and vegetable recommendations. The majority of participants correctly recognized the recommended daily amount of water and the feasibility of daily consumption of the traditional Brazilian dish of beans and rice, indicating an adequate understanding about the inclusion of traditional and nutritious foods in the diet. Less than half of them use supplements, but all reported desired results, and the majority receive nutritional guidance from qualified professionals. Conclusion: BT practitioners demonstrate a good understanding about nutrition and recognize the importance of healthy eating for their sports performance. It is essential to improve education in specific areas to optimize the sports performance and general health of these individuals.

Comparative analysis of dietary intake between vegetarian and omnivorous strength training practitioners: Protein consumption disparity

2025-02-13T14:20:29-08:00

The interaction between a vegetarian diet and strength training remains an area lacking substantial information. However, it is recognized that both vegetarian and omnivorous practitioners require adequate energy and nutrient intake to optimize performance and muscle recovery. This study aimed to compare the dietary intake of omnivores versus vegetarian practitioners of resistance training. Dietary intake was assessed via 24-hour recall and analyzed using the WebDiet® software. A total of 79 (44.6%) vegetarians and 98 (55.4%) omnivores participated in this study, with a majority being female (81.0%) among vegetarians, while the sample among omnivores was equally distributed between genders. The mean energy intake was 27.8±10.5 kcal/kg/day and 29.0±9.4 kcal/kg/day in vegetarian and omnivorous women, respectively, while in men, it was 28.7±10.6 kcal/kg/day and 29.6±8.6 kcal/kg/day in vegetarians and omnivores, respectively. There was no significant difference in average carbohydrate and fat consumption between groups. Protein intake was significantly lower among vegetarians [(female veg=1.3±0.8g/kg/day vs Omniv.=1.7±0.7g/kg/day, p<0.001); (male veg=1.2±0.7g/kg/day vs Omniv.=1.7±0.6g/kg/day, p=0.001)]. In conclusion, vegetarians and omnivores displayed similar dietary intake, but vegetarians tend to consume less protein, which may impair muscle recovery and mass gain.

Suboptimal energy and carbohydrate intake in male CrossFit® practitioners: Adequate protein but imbalanced distribution

2025-02-10T13:04:37-08:00

Objective: This study aims to evaluate the dietary intake of male CrossFit® practitioners, focusing on energy consumption, macronutrient distribution, and pre- and post-training nutrient intake. Materials and Methods: The study was conducted with 31 male CrossFit® practitioners. Participants provided four 24-hour dietary recalls over two weeks. Energy and nutrient intake were analyzed, and adequacy was evaluated against established nutritional recommendations. Protein and carbohydrate intake were compared pre- and post-workout, and the percentage of animal protein intake was assessed. Results: The average energy intake was 29.7 ±7.6 kcal/kg/day, below the recommended 30-50 kcal/kg/day. Carbohydrate intake averaged 3.4 ±1.0 g/kg/day, also below the recommended 5-12 g/kg/day, with only 9.67% meeting the recommendations. Protein intake was within the recommended range at 1.8 ±0.4 g/kg/day. Post-workout meals had significantly higher protein (41.4 ±15.9 g) and carbohydrate (66.2 26.7 g) intake compared to pre-workout meals (19.7 ±13.2 g and 50.6 ±25.2 g, respectively). The diet was predominantly animal-based, with animal protein comprising 77.7% of total protein intake. Conclusion: The study highlights suboptimal energy and carbohydrate intake among male CrossFit® practitioners, with adequate protein intake but an imbalance in protein distribution across meals.