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Mental fatigue impairs technical performance and alters neuroendocrine and autonomic responses in elite young basketball players

2018; Elsevier BV; Volume: 196; Linguagem: Inglês

10.1016/j.physbeh.2018.08.015

1873-507X

Alexandre Moreira, Marcelo Saldanha Aoki, Émerson Franchini, Daniel Gomes da Silva Machado, Ana Carolina Paludo, Alexandre Hideki Okano,

Heart Rate Variability and Autonomic Control

This study investigated the effects of mental exertion on Small-Sided-Games (SSG) technical performance, salivary testosterone (T), cortisol (C), and alpha-amylase (sAA) responses in 32 basketball players (15.2 ± 1.2 years; 180 ± 11 cm; 72 ± 15 kg). Technical performance and heart rate (HR) were assessed on two occasions, preceded by a 30-min incongruent Stroop task (mentally exertion treatment) or a 30-min control treatment. Saliva samples were collected before and after the treatment and after the SSG, and ratings of perceived exertion (session-RPE) was assessed. Large increase was observed from pre-control treatment to post-SSG for T (ES = 0.98) and sAA (ES = 0.82), but there was a small difference from pre-Stroop-task to post-SSG in T (ES = 0.33) and a moderate difference for sAA (ES = 0.55). Small changes in C for both conditions were observed (ES = 0.00 and 0.15, respectively). There were small differences between treatments for session-RPE (ES = 0.07), maximum (ES = −0.35) and average HR (ES = −0.16). Increased turnovers during the SSG (ES = 0.71) was seen following the Stroop task. The data suggest that mental fatigue state is a key regulator of technical performance of basketball players and that mental fatigue seems to modulate endocrine and autonomic responses.