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Affect and exercise: positive affective expectations can increase post-exercise mood and exercise intentions.

Suzanne G Helfer1, Jon D Elhai, Andrew L Geers

  • 1Adrian College, Adrian, MI, USA, shelfer@adrian.edu.

Annals of Behavioral Medicine : a Publication of the Society of Behavioral Medicine
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Summary

Manipulating expectations about post-exercise feelings can increase exercise intentions. Elaborating on these positive expectations further prolongs the effect on exercise behavior.

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Area of Science:

  • Behavioral Science
  • Exercise Psychology

Background:

  • Affective states are known predictors of exercise behavior.
  • Limited research has explored the causal impact of exercise-related affect on intentions.

Purpose of the Study:

  • To determine if manipulating expectations of post-exercise affect influences affect and intentions.
  • To investigate if cognitive elaboration enhances the duration of these effects.

Main Methods:

  • Participants (N=148) underwent affective expectation and elaboration manipulations.
  • Light-intensity exercise (10 min) was performed on a stationary bicycle.
  • A 2-week follow-up assessed sustained effects.

Main Results:

  • Participants with positive affective expectations reported greater post-exercise positive affect and intentions.
  • Elaboration on positive expectations led to sustained positive affect during follow-up.

Conclusions:

  • Positive post-exercise affect expectations can be experimentally induced to boost exercise intentions.
  • Cognitive elaboration amplifies the sustained impact of these expectations on exercise behavior.