Poster F33, Tuesday, March 27, 8:00-10:00 am, Exhibit Hall C
Effects of cognitive engagements after acute exercise on inhibitory control
Keishi Soga1, Tobias Vogt2, Hiroaki Masaki1; 1Waseda University, 2German Sport University Cologne
Numerous studies have confirmed beneficial effects of acute aerobic exercise on executive function that is primarily processed in prefrontal cortex. However, empirical evidence is scarce on how cognitive engagements of prefrontal cortex after exercise affect executive function. This study examined the effect of cognitive engagements after exercise on executive function using a within-participant counterbalanced design. In an exercise condition, 18 young adult participants performed moderate intensity aerobic exercise for 20 min and then underwent a memory task, which requires activities of prefrontal cortex, before a flanker task to assess inhibitory control. In a rest condition, participants read newspaper for 20 min. During the flanker task, participants were instructed to respond to the direction of targets by pressing either left or right button as quickly and accurately as possible. We compared cognitive performance as well as event-related potentials (ERPs) during the flanker task between the exercise and rest conditions. Although there was no significant difference in performance between the two conditions, the P3 amplitude was significantly smaller in the exercise condition relative to the rest condition. Further, the standardized low-resolution electromagnetic tomography (sLORETA) analysis assumed that left middle frontal gyrus was responsible for the reduction of the P3 amplitude. Thus, our results suggest that cognitive engagements after exercise might induce efficiency of inhibitory control and that the left frontal brain function might be involved in the efficiency.
Topic Area: EXECUTIVE PROCESSES: Monitoring & inhibitory control