Reduced Barriers Mediated Physical Activity Maintenance Among Breast Cancer Survivors

• Autores: Laura Q. Rogers, Stephen J. Markwell, Patricia Hopkins-Price, Sandy Vicari, Kerry S. Courneya
• Localización: Journal of sport and exercise psychology, ISSN 0895-2779, Vol. 33, Nº. 2, 2011, págs. 235-254
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Dialnet Métricas: 1 Cita
• Resumen

  • To better understand mechanisms of physical activity (PA) behavior change in breast cancer survivors, we examined mediation of a successful PA behavior change intervention by social cognitive theory (SCT) constructs. Our exploratory study randomized 41 breast cancer survivors to receive the 3-month intervention (INT) or usual care (UC). We used the Freedman and Schatzkin approach to examine mediation of intervention effect on PA 3 months postintervention by changes in SCT constructs from baseline to immediately postintervention. Compared with UC, the INT group reported lower barriers interference (mean difference = �7.8, 95% CI [�15.1, �0.4], d = �0.67, p = .04) and greater PA enjoyment (mean difference = 0.7, 95% CI [0, 1.5], d = 0.61, p = .06). Barriers interference mediated 39% (p = .004) of the intervention effect on PA 3 months postintervention. PA enjoyment was not a significant mediator. Reducing barriers to PA partially explained our intervention effect