Effects of green tea on sports perfomance
Abstract
Introduction: Green tea, obtained from the Camellia sinensis plant, is consumed in different cultures around the world. Green tea can promote an increase in fat oxidation during aerobic exercise, which can have a glycogen-sparing effect and, consequently, improves the resistance capacity. Objective: To evaluate the effect of green tea on the sports performance of athletes and practitioners of physical activity. Materials and methods: This study is a narrative review. For the construction of this review, a bibliographic review was carried out on a database from 2011 on, which addresses green tea and physical activity. Based on the exclusion and inclusion criteria, nine articles were selected to compose this review. Results: Acute studies did not show improvement in performance and reduction of oxidative stress. After four weeks, the intake of 980mg of green tea polyphenols prevented oxidative stress but did not show any performance improvement. When it comes to the effects of green tea on body composition, the number of studies is limited, especially in athletes. Discussion: The acute intake of green tea does not seem to impact sports performance. On the other hand, tapered consumption seems to improve the performance of physical activity practitioners. The effect of green tea on the immune system of athletes is unclear. Conclusion: Studies are needed to assess the effects of acute and chronic green tea intake on athletes and physical activity practitioners.
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