No Effects of Mental Fatigue and Cerebral Stimulation on Physical Performance of Master Swimmers.

Autor:	Penna EM; GET/UFPA - Grupo de Estudos em Treinamento Físico e Esportivo, Universidade Federal do Pará, Castanhal, Brazil.; LAFISE - Laboratório de Fisiologia do Exercício, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil., Filho E; Wheelock College of Education and Human Development, Boston University, Boston, MA, United States., Campos BT; LAFISE - Laboratório de Fisiologia do Exercício, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil., Ferreira RM; LAQUA - Laboratório de Atividades Aquáticas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil., Parma JO; NNeuroM - Núcleo de Neurociências do Movimento Humano, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil., Lage GM; NNeuroM - Núcleo de Neurociências do Movimento Humano, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil., Coswig VS; GET/UFPA - Grupo de Estudos em Treinamento Físico e Esportivo, Universidade Federal do Pará, Castanhal, Brazil., Wanner SP; LAFISE - Laboratório de Fisiologia do Exercício, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil., Prado LS; LAFISE - Laboratório de Fisiologia do Exercício, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.; CTE- Centro de Treinamento Esportivo/UFMG, Belo Horizonte, Brazil.
Jazyk:	angličtina
Zdroj:	Frontiers in psychology [Front Psychol] 2021 Jul 05; Vol. 12, pp. 656499. Date of Electronic Publication: 2021 Jul 05 (Print Publication: 2021).
DOI:	10.3389/fpsyg.2021.656499
Abstrakt:	Background: Mental fatigue is a psychobiological state caused by extended periods of cognitive effort, and evidence suggests that mentally fatigued athletes present impaired physical performance. Different ergogenic aids have been proposed to counteract the deleterious effects of mental fatigue, but whether brain stimulation can counteract mental fatigue is still unknown. This scenario is even more obscure considering the effects of these interventions (mental fatigue induction and brain stimulation) in a very experienced population consisting of master athletes. Method: Ten master swimmers (30 ± 6 years old and 14 ± 8 years of experience) participated in the study. They underwent four experimental conditions before an 800-m freestyle test: mental fatigue with brain stimulation; mental fatigue without brain stimulation; absence of mental fatigue with brain stimulation; and absence of mental fatigue and no brain stimulation. Mental fatigue was induced by a cognitively demanding Stroop Color Test, whereas stimulation was applied on the temporal cortex. After that, the athletes swan 800 m as fast as possible and provided their ratings of perceived exertion (RPE) every 200 m. Results: Mental fatigue was effectively induced, as evidenced by a greater fatigue perception and more errors in the last blocks of the cognitive task. Mental fatigue induction did not influence performance (time to complete the swimming trial) and RPE. Similarly, brain stimulation failed to change these two parameters, regardless of mental fatigue induction. Conclusion: The prolonged physical performance of experienced master athletes is not influenced, under the present conditions, by mental fatigue induction, cerebral stimulation, and their association. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2021 Penna, Filho, Campos, Ferreira, Parma, Lage, Coswig, Wanner and Prado.)
Databáze:	MEDLINE
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