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- Ntoumanis, N., et al.
(författare)
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Longitudinal associations between exercise identity and exercise motivation: A multilevel growth curve model approach
- 2018
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Ingår i: Scandinavian Journal of Medicine and Science in Sports. - : Wiley. - 0905-7188 .- 1600-0838. ; 28:2, s. 746-753
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Tidskriftsartikel (refereegranskat)abstract
- Past work linking exercise identity and exercise motivation has been cross-sectional. This is the first study to model the relations between different types of exercise identity and exercise motivation longitudinally. Understanding the dynamic associations between these sets of variables has implications for theory development and applied research. This was a longitudinal survey study. Participants were 180 exercisers (79 men, 101 women) from Greece, who were recruited from fitness centers and were asked to complete questionnaires assessing exercise identity (exercise beliefs and role-identity) and exercise motivation (intrinsic, identified, introjected, external motivation, and amotivation) three times within a 6month period. Multilevel growth curve modeling examined the role of motivational regulations as within- and between-level predictors of exercise identity, and a model in which exercise identity predicted exercise motivation at the within- and between-person levels. Results showed that within-person changes in intrinsic motivation, introjected, and identified regulations were positively and reciprocally related to within-person changes in exercise beliefs; intrinsic motivation was also a positive predictor of within-person changes in role-identity but not vice versa. Between-person differences in the means of predictor variables were predictive of initial levels and average rates of change in the outcome variables. The findings show support to the proposition that a strong exercise identity (particularly exercise beliefs) can foster motivation for behaviors that reinforce this identity. We also demonstrate that such relations can be reciprocal overtime and can depend on the type of motivation in question as well as between-person differences in absolute levels of these variables. © 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd
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| 2. |
- Thøgersen-Ntoumani, C., et al.
(författare)
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Is a female physical empowerment campaign effective in improving positive body image, motivation for physical activity, and physical activity behavior in young female adults? A two-study experimental test of "This Girl Can"
- 2022
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Ingår i: Body image. - : Elsevier. - 1740-1445 .- 1873-6807. ; 42, s. 150-159
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Tidskriftsartikel (refereegranskat)abstract
- This Girl Can is a campaign designed to empower women to increase physical activity. The campaign uses images/videos of women of diverse body weights/shapes, ages and ethnicities being physically active, emphasizing body functionality. First, we examined the effects of multi-session (N = 3) exposures to This Girl Can on body functionality, body appreciation and self-compassion (Study 1). Second, we explored if autonomous motivation for physical activity mediated effects of This Girl Can on physical activity (Study 2). Women (Study 1: N = 186, M (SD) age = 27.55 (14.01); Study 2: N = 153, M (SD) age = 28.31 (11.70)) were randomized to This Girl Can, or control videos/images depicting idealized women of thin/athletic body types being physically active (Study 1), or control videos highlighting physical activity benefits (Study 2). Outcomes were measured at baseline, post-test and 1-week follow-up. Study 1 results showed significant group by time interactions for body functionality (decreasing in the control group), body appreciation and self-compassion (both increased only in the experimental conditions). In Study 2, path analysis revealed no statistically significant mediation effect (ab = 13.18, 95 % CI [−107.92, 152.59]) of autonomous motivation. Future interventions designed to promote positive body image and self-compassion should incorporate media focusing on diverse women engaging in self-chosen physical activity.
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