Affect and Exercise: Positive Affective Expectations Can Increase Post-Exercise Mood and Exercise Intentions
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ORIGINAL ARTICLE
Affect and Exercise: Positive Affective Expectations Can Increase Post-Exercise Mood and Exercise Intentions Suzanne G. Helfer, PhD & Jon D. Elhai, PhD & Andrew L. Geers, PhD
# The Society of Behavioral Medicine 2014
Abstract Background Prior research has found affect to predict exercise. Little research has examined the causal influence of exercise-related affect on exercise intentions. Purpose The purpose of this study was to test whether expectations about post-exercise affect can be successfully manipulated to produce changes in post-exercise affect and exercise intentions. We also tested whether cognitively elaborating on the expectation would increase the duration of the expectation effect. Methods Participants (59 men, 89 women) were exposed to an affective expectation manipulation as well as an elaboration manipulation and then completed 10 min of lightintensity exercise on a stationary bicycle in the laboratory. Participants also completed a 2-week follow-up. Results Affective expectation participants displayed more positive post-exercise affect and exercise intentions than noexpectation participants (ps
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