In:
Scientific Reports, Springer Science and Business Media LLC, Vol. 12, No. 1 ( 2022-12-27)
Abstract:
The speed and accuracy of decision-making ( i.e. , executive function (EF) domains) is an integral factor in many sports. At rest, prolonged cognitive load (pCL) impairs reaction time (RT). In contrast, exercise improves RT and EF. We hypothesized that RT and EF during exercise would be diminished by prolonged ‘dual tasking’ as a consequence of pCL. To test the hypothesis, twenty healthy male participants performed four conditions [resting control (Rest), pCL only (pCL Rest ), exercise only (EX), and pCL + exercise (pCL EX )] in a randomized-crossover design. Both exercise conditions utilized a 50-min cycling exercise protocol (60% VO 2 peak) and the pCL was achieved via a 50-min colour-word Stroop task (CWST). Compared with Rest, pCL Rest caused a slowed CWST RT ( P 〈 0.05) and a large SD ( i.e. , intraindividual variability) of CWST RT ( P 〈 0.01). Similarly, compared with EX, the slowed CWST RT ( P 〈 0.05) and large SD of CWST RT ( P 〈 0.01) were also observed in pCL EX . Whereas the reverse-Stroop interference was not affected in pCL Rest ( P = 0.46), it was larger ( i.e. , declined EF) in pCL EX than EX condition ( P 〈 0.05). These observations provide evidence that the effort of pCL impairs RT and EF even during exercise.
Type of Medium:
Online Resource
ISSN:
2045-2322
DOI:
10.1038/s41598-022-26788-6
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2022
detail.hit.zdb_id:
2615211-3
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