Affective and Enjoyment Responses to High-Intensity Interval Training in Overweight-to-Obese and Insufficiently Active Adults

in Journal of Sport and Exercise Psychology
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High-intensity interval training (HIIT) has many known physiological benefits, but research investigating the psychological aspects of this training is limited. The purpose of the current study is to investigate the affective and enjoyment responses to continuous and high-intensity interval exercise sessions. Twenty overweight-to-obese, insufficiently active adults completed four counterbalanced trials: a 20-min trial of heavy continuous exercise and three 24-min HIIT trials that used 30-s, 60-s, and 120-s intervals. Affect declined during all trials (p < .05), but affect at the completion of trials was more positive in the shorter interval trials (p < .05). Enjoyment declined in the 120-s interval and heavy continuous conditions only (p < .05). Postexercise enjoyment was higher in the 60-s trial than in the 120-s trial and heavy continuous condition (p < .05). Findings suggest that pleasure and enjoyment are higher during shorter interval trials than during a longer interval or heavy continuous exercise.

Nic Martinez and Marcus W. Kilpatrick are with the Department of Exercise Science, University of South Florida, Tampa, Florida. Kristen Salomon is with the Department of Psychology, University of South Florida, Tampa, Florida. Mary E. Jung and Jonathan P. Little are with the Department of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, British Columbia, Canada.

Address author correspondence to Marcus W. Kilpatrick at mkilpatrick@usf.edu.
Journal of Sport and Exercise Psychology