Effects of Acute Exercise on Sensory and Executive Processing Tasks
Résumé
LAMBOURNE, K., M. AUDIFFREN, and P. D. TOMPOROWSKI. Effects of Acute Exercise on Sensory and Executive Processing
Tasks. Med. Sci. Sports Exerc., Vol. 42, No. 7, pp. 00–00, 2010. Purpose: The immediate and delayed effects of a single bout of
steady-state aerobic exercise on 19 young adults’ (mean = 21.1 yr) sensory sensitivity (critical flicker fusion, CFF) and executive
function (modified Paced Auditory Serial Addition Task, PASAT) were assessed. Methods: Tests were performed before exercise, five
times during 40 min of ergometer cycling at 90% ventilatory threshold, and three times during a 30-min postexercise period. In a
separate control session, each participant performed the same sequence of tests while seated on the ergometer without pedaling.
Results: ANOVA were performed separately on CFF and PASAT scores, which compared performance during exercise and nonexercise conditions at nine time points. Planned ANOVA of CFF scores revealed that the participants’ sensory discrimination increased
during exercise and then quickly returned to baseline levels immediately after exercise. PASAT scores did not change during or after
exercise. Conclusions: Exercise-induced arousal facilitates sensory processes involved in stimulus detection but does not influence
the updating component of executive processing