Perda rápida de peso: o efeito da ingestão de cafeína durante o período de recuperação e sua influência sobre o desempenho em atletas de judô

Abstract

Weight loss reduction is commonly used in combat sport’s athletes. Some studies showed that judo’s athletes significantly reduce their body weight a few days before the competition using various methods that are harmful to health, such as: food and fluid restriction, exercising in rubber or plastics suits, saunas, diet pills and vomiting. However, this rapid weight loss has caused many physiological effects, such as changes in lipids profile and decrease in insulin and testosterone concentrations. Additionally, some studies have showed that performance is impaired after the rapid weight loss. To contribute to this discussion are presented in this dissertation two papers: a review paper in which are presented and discussed the main methods used by athletes for rapid weight loss, the physiological changes caused by this practice and its influence on performance. The second paper that refers to an experimental study in which investigated the influence of the caffeine ingestion after a recovery period, followed by a recovery period after weigh-in on performance, lactate concentration and perceived exertion in judo athletes were investigated.