For athletes, resveratrol is useless and even harmful
According to data obtained by Canadian researchers from Queen's University, contrary to popular belief, the use of biologically active supplements containing resveratrol does not actually enhance the effects of high-intensity interval training.
The polyphenol resveratrol contained in the skin of red grapes is attributed to many useful properties, including the ability to increase life expectancy and increase the effectiveness of exercise. Recently appeared food additives containing resveratrol are often positioned as means to achieve the effects of physical exertion without training or to increase the effectiveness of the latter.
To verify this statement, researchers working under the guidance of Professor Brendon Gurd recruited 16 volunteers who, before being included in the study, were subjected to aerobic exercise for less than 3 hours a week. They were asked to perform a high-intensity interval training program three times a week for four weeks. During this period, participants also took a daily resveratrol-containing dietary supplement or placebo.
The examination conducted after the end of this period showed an improvement in the physical form of the placebo group participants, while the physical form of the participants taking resveratrol did not change.
According to the authors, the data obtained indicate that taking resveratrol alters the body's normal response to high-intensity physical activity. At the same time, resveratrol not only does not increase the effectiveness of training, but, on the contrary, neutralizes their effect on the body.
The conclusion made by the researchers indicates the need for further research and revision of the recommendations for taking popular dietary supplements today.
Article by Trisha D. Scribbans et al. Resveratrol could reverse the benefits of being active is published in the journal Applied Physiology, Nutrition and Metabolism.
Evgeniya Ryabtseva
Portal "Eternal youth" http://vechnayamolodost.ru based on the materials of Queen's University: Resveratrol supplementation
does not augment performance adaptations or fibre-type–specific responses to high-intensity interval training in humans.
05.11.2014