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Background <p>This study investigates how motivational regulation mediates the relationship between body image satisfaction and physical activity participation, considering sex differences.</p> Methods <p>The study used a cross-sectional design and involved 1012 participants stratified by sex of the Spanish adult population. Body image satisfaction was assessed using the Multidimensional Body Self-Relations Questionnaire (MBSRQ), motivational regulation using the Behavioural Regulation Exercise Questionnaire (BREQ-3), and total weekly minutes of moderate-vigorous PA with the International Physical Activity Questionnaire Short Form (IPAQ-SF). Structural equation modelling was used to test the hypothesised relationships.</p> Results <p>The findings showed that satisfaction with physical appearance and physical shape had both direct and indirect associations with moderate-vigorous PA and motivational regulation. The relationship between body image satisfaction and moderate-vigorous PA was mainly mediated by intrinsic, integrated, and introjected regulations for men and integrated, identified, and amotivated regulations for women.</p> Conclusion <p>These findings suggest that motivational regulation may play a crucial role in the relationship between body image satisfaction and PA participation. Promoting intrinsic and integrated motivation in men and women, respectively, rather than appearance-based goals, may foster more sustainable PA. The findings can provide valuable insights for policymakers and practitioners seeking to promote healthy PA behaviour.</p>

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Exploring the mediating role of motivational regulations in the relationship between body image and physical activity by sex: a structural equation modelling approach

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年10月29日

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  • Sergio Navas-León,
  • Ana Tajadura-Jiménez,
  • Luis Morales,
  • Mercedes Borda-Mas,
  • María Luisa Avargues-Navarro,
  • Milagrosa Sánchez-Martín

摘要

Background

This study investigates how motivational regulation mediates the relationship between body image satisfaction and physical activity participation, considering sex differences.

Methods

The study used a cross-sectional design and involved 1012 participants stratified by sex of the Spanish adult population. Body image satisfaction was assessed using the Multidimensional Body Self-Relations Questionnaire (MBSRQ), motivational regulation using the Behavioural Regulation Exercise Questionnaire (BREQ-3), and total weekly minutes of moderate-vigorous PA with the International Physical Activity Questionnaire Short Form (IPAQ-SF). Structural equation modelling was used to test the hypothesised relationships.

Results

The findings showed that satisfaction with physical appearance and physical shape had both direct and indirect associations with moderate-vigorous PA and motivational regulation. The relationship between body image satisfaction and moderate-vigorous PA was mainly mediated by intrinsic, integrated, and introjected regulations for men and integrated, identified, and amotivated regulations for women.

Conclusion

These findings suggest that motivational regulation may play a crucial role in the relationship between body image satisfaction and PA participation. Promoting intrinsic and integrated motivation in men and women, respectively, rather than appearance-based goals, may foster more sustainable PA. The findings can provide valuable insights for policymakers and practitioners seeking to promote healthy PA behaviour.