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Related Experiment Video

Updated: Jul 10, 2025

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Keeping Things Positive: Affect as a Mediator between Physical Activity and Psychological Functioning.

Aliakbar Foroughi1,2, Nils T Henschel3, Hassan Shahi1,4

  • 1Department of Clinical Psychology, School of Medicine, Kermanshah University of Medical Sciences (KUMS), Kermanshah 6714415333, Iran.

European Journal of Investigation in Health, Psychology and Education
|November 24, 2023
PubMed
Summary

Higher physical activity positively impacts psychological well-being by influencing positive and negative affect. This study in young adults found affect mediates the link between exercise and mental health outcomes.

Keywords:
physical activitypositive and negative affectpsychological dysfunctioningpsychological well-being

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Area of Science:

  • Psychology
  • Behavioral Science
  • Public Health

Background:

  • Physical activity is linked to better psychological functioning.
  • The mediating role of affect (positive and negative emotions) in this relationship remains unclear.
  • Understanding these mechanisms is crucial for mental health promotion.

Purpose of the Study:

  • To investigate whether affect mediates the association between physical activity and psychological well-being (PWB) and psychological dysfunctioning (PD).
  • To explore this relationship in young Iranian adults.

Main Methods:

  • Cross-sectional study involving 200 young Iranian adults.
  • Self-rating questionnaires assessed physical activity, positive affect, negative affect, PWB, and PD.
  • Regression analyses and structural equation modeling were employed.

Main Results:

  • Higher physical activity, higher positive affect, and lower negative affect predicted better PWB.
  • The opposite pattern was observed for PD.
  • Structural equation modeling confirmed that positive and negative affect mediate the physical activity-PWB/PD relationship.

Conclusions:

  • Affective states (positive and negative) are key mediators in the link between physical activity and psychological health.
  • Changes in affect may explain how physical activity influences psychological well-being and dysfunctioning.
  • Further longitudinal and experimental research is recommended across diverse populations.