Influence of an exhausting muscle exercise on bimanual coordination stability and attentional demands

Neuroscience Letters
Alexandre MurianJean Jacques Temprado

Abstract

The present study investigated the influence of a bilateral exhaustive exercise on the stability of bimanual anti-phase coordination pattern and attentional demands. Eight subjects performed the anti-phase coordination pattern in two sessions: an Exhausting Session and a Control Session. During the Exhausting Session, subjects performed the bimanual coordination after exhaustion of forearms muscles (i.e. endurance time test). For the Control Session, no endurance time test was previously designed before the performance of anti-phase coordination. Within these experimental sessions, two levels of load (loaded and unload) and two frequencies (1.75 and 2.25 Hz) were also manipulated during the bimanual task. Attentional demands associated with performing the anti-phase coordination pattern was measured via a probe reaction time task (RT). The results showed that relative phase variability was higher for the fastest frequency after the exhaustive exercise. Moreover, as a result of the previous muscle exercise, the observed phase coupling was less accurate. No significant effect was found concerning the attentional demands as assessed through RT. The present findings suggest that the muscle exhaustion affects bimanual performance at...Continue Reading

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Citations

Jan 15, 2010·Journal of Neurophysiology·Natalia DounskaiaElizabeth Drummond
Mar 5, 2013·Journal of Neuroengineering and Rehabilitation·Thibault DeschampsChristophe Cornu
Jan 20, 2009·Journal of Biomechanics·James C Martin, Nicholas A T Brown

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