Efeitos da fadiga mental no desempenho físico e nas respostas fisiológicas de judocas submetidos ao special judo fitness test

• Ano de defesa: 2018
• Autor(a) principal: Bruno Teobaldo Campos
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; Brasil; Programa de Pós-Graduação em Ciências do Esporte; UFMG
• Palavras-chave em Português: Fadiga mental; Judô; Esforço cognitivo
• Link de acesso: http://hdl.handle.net/1843/30748

Mental Fatigue can manifest itself subjectively, behaviorally and physiologically. In order for a framework of mental fatigue to be established, at least one of these conditions must manifest itself, but in general, all forms manifest themselves concomitantly. Mentally fatigued subjects present reductions in aerobic performance, strength endurance, anticipation of movement, and manual dexterity. The performance of maximal strength, muscular power and anaerobic performance appear not to be abilities affected by this state of fatigue. However, the effects of FM in intermittent high-intensity tests with specific motor skills of fighting modalities have not yet been tested. Thus, the objective of the present study was to verify the effect of mental fatigue on the performance and the physiological responses of judokas to an intermittent test specific for judo athletes. Each individual performed two experimental situations - one control and one with mental fatigue induction - distributed in a random and balanced manner. In both situations, heart rate, lactate, glucose, cortisol and psychometric variables were collected at rest after treatment and after the specific judo test. The treatment consisted of a 30-minute cognitive effort or watching a movie. After the treatment and measurement of the physiological and psychometric variables, the athletes performed a specific and validated test for judokas. The task used in this study (Stroop Color Test) induced an increase in the perception of mental fatigue. However, mentally fatigued athletes did not show reduced physical performance. Regarding the physiological variables, no significant difference between the control situations and after the protocol for induction of mental fatigue was identified. Therefore, this study demonstrated that maximal intermittent activities using specific judo exercises are not hampered by a previous cognitive task that causes mental fatigue.