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Original Articles

Self-efficacy and affective responses to short bouts of exercise

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Pages 268-280 | Received 22 Jul 1996, Published online: 14 Jan 2008
 

Abstract

One of the most commonly cited barriers to exercise participation is lack of available time. Furthermore, the minimum exercise duration required to produce physiological changes has seen considerable attention, whereas the minimum duration required to produce psychological benefits has been largely ignored. Therefore, the purpose of the current study was to contrast the effects of 10, 15, and 20 minutes of treadmill running on self-efficacy and affective responses. Repeated measures analysis of variance revealed that self-efficacy increased in all participants (p < .001). Furthermore, multivariate analyses of variance showed that each condition generated increases in positive well-being and decreases in psychological distress (p's< .05). Correlational analyses of post-exercise assessments indicated that self-efficacy levels were positively related to positive well-being and inversely related to fatigue. These findings suggest that 10 minutes of aerobic exercise is sufficient to enhance exercise-related self-efficacy and affect.

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