Abstract
The purpose of this study was to investigate how fatigue changes following moderate-intensity aerobic exercise. Then we examined the relationships between change of fatigue and the change of self-efficacy for acute exercise. Sixteen undergraduate or graduate students were recruited as the subjects in this study. Two measures were obtained during the exercise condition: 1) The Japanese version of the Iceberg Profile was used to measure fatigue, 2) Self-efficacy for continuing moderate-intensity acute exercise was assessed. Subjects performed 20 minutes of cycling at moderate intensity on a cycle ergometer. In addition, subjects engaged in reading a book, which served as the control condition. To investigate the influence of exercise on fatigue, a repeated ANOVA was performed. However, the ANOVA did not show significant main effect for condition, main effect for time, and condition \ time interaction. The results of this analysis suggest that moderate-intensity exercise did not increase fatigue. The relationship between the change score of fatigue and change scores of self-efficacy was examined using a correlational analysis. The change score of fatigue was found to have no significant relationship with either change scores of self-efficacy. The results of this study suggest that fatigue and self-efficacy may independently arise with exercise.
