期刊
JOURNAL OF ADOLESCENT AND YOUNG ADULT ONCOLOGY
卷 4, 期 1, 页码 26-33出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/jayao.2014.0034
关键词
physical activity; behavioral intervention; mediation; social networking website; Facebook; psychosocial determinants
类别
资金
- UNC Lineberger Cancer Control Education Program (National Cancer Institute) [R25 CA057726]
- UNC Communications for Health Applications and Interventions Core (Gillings School of Global Public Health Nutrition Obesity Research Center) [P30 DK56350]
- Lineberger Comprehensive Cancer Center [National Cancer Institute] [P30 CA16086]
- National Center for Research Resources [UL1RR025747]
- Society of Behavioral Medicine Distinguished Student Award for Excellence in Research
- UNC Cancer Health Disparities Training Program (National Cancer Institute) [T32 CA128582]
- NATIONAL CANCER INSTITUTE [T32CA128582, P30CA016086, P50CA058223, R25CA057726] Funding Source: NIH RePORTER
- NATIONAL CENTER FOR RESEARCH RESOURCES [UL1RR025747] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES [P30DK056350] Funding Source: NIH RePORTER
Purpose: This study examined the effects of a physical activity (PA) intervention for young adult cancer survivors on changes in self-efficacy, social support, and self-monitoring and determined whether changes in these social cognitive theory constructs mediated the relationship between the intervention and changes in PA. Methods: A 12-week randomized trial compared a Facebook-based intervention (FITNET) aimed at increasing moderate-to-vigorous intensity PA to a Facebook-based self-help comparison group. Young adult cancer survivors (N = 86, aged 21-39) were randomly assigned to one of the two groups. Self-report measures of PA and psychosocial variables were collected at baseline and after 12 weeks. Results: The FITNET group reported lower self-efficacy for sticking to exercise (mean change = -0.38; 95% CI: -0.62 to -0.12; p = 0.025) and social support from friends on social networking websites (mean change = -0.47; 95% CI: -1.45 to 0.65; p = 0.039) relative to the self-help comparison group over time. Changes in social support from friends on social networking websites partially mediated the intervention effects on moderate-to-vigorous PA (mean indirect effect = -22.4; 95% CI: -62.0 to -2.8) in the unexpected direction. Across both groups, social support from friends and self-monitoring were positively associated with changes in moderate-to-vigorous PA. Conclusion: The proposed mediators did not explain the positive effects of the FITNET intervention on mild PA. The lack of significant improvements in psychosocial constructs among FITNET participants may partly explain why the intervention did not increase moderate-to-vigorous PA relative to the self-help comparison group. Future PA interventions with young adult cancer survivors should examine targeting social support from friends and self-monitoring.
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