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Mediators of physical activity maintenance during a 12-month randomized controlled trial among breast Cancer survivors.
- Source :
-
Journal of Behavioral Medicine . Oct2023, Vol. 46 Issue 5, p745-756. 12p. 1 Diagram, 5 Charts. - Publication Year :
- 2023
-
Abstract
- Purpose: To explore the theoretical constructs that functioned as mediators of interventions for moderate-to-vigorous physical activity (MVPA) maintenance among breast cancer survivors. Method: 161 survivors were randomized into 3 groups: Reach Plus, Reach Plus Message or Reach Plus Phone. All participants received a 3-month theory-based intervention delivered by volunteer coaches. During months 4–9, all participants monitored their MVPA and received feedback reports. Additionally, Reach Plus Message received weekly text/email messages and Reach Plus Phone received monthly calls from their coaches. Assessments of weekly MVPA minutes and theoretical constructs (self-efficacy, social support, physical activity [PA] enjoyment and PA barriers) were obtained at baseline, 3, 6, 9 and 12-months. Analyses: Using a multiple mediator analysis with a product of coefficients approach, we examined mechanisms associated with between-group differences over time in weekly MVPA minutes. Results: Self-efficacy mediated effects of Reach Plus Message vs. Reach Plus at 6 (ab = 16.99) and 9 M (ab = 27.45); social support mediated effects at 6 (ab = 4.86), 9 (ab = 14.30) and 12 M (ab = 6.18). Self-efficacy mediated effects of Reach Plus Phone vs. Reach Plus at 6 (ab = 18.76), 9 (ab = 28.93) and 12 M (ab = 18.18). Social support mediated effects of Reach Plus Phone vs. Reach Plus Message at 6 (ab=-5.50) and 9 M (ab=-13.20); PA enjoyment mediated effects at 12 M (ab=-3.63). Conclusions: PA maintenance efforts should focus on strengthening breast cancer survivors' self-efficacy and obtaining social support. The trial was registered at ClinicalTrials.Gov: NCT02694640 (Feb. 26, 2016). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01607715
- Volume :
- 46
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Journal of Behavioral Medicine
- Publication Type :
- Academic Journal
- Accession number :
- 172842168
- Full Text :
- https://doi.org/10.1007/s10865-023-00402-0