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Gepubliceerd in:

09-03-2023

Mediators of physical activity maintenance during a 12-month randomized controlled trial among breast Cancer survivors

Auteurs: Bernardine M. Pinto, Shira I. Dunsiger, Madison M. Kindred, Sheryl Mitchell

Gepubliceerd in: Journal of Behavioral Medicine | Uitgave 5/2023

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).

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volgende artikel Determinants of physical activity engagement in older adults

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Titel: Mediators of physical activity maintenance during a 12-month randomized controlled trial among breast Cancer survivors
Auteurs: Bernardine M. Pinto
Shira I. Dunsiger
Madison M. Kindred
Sheryl Mitchell
Publicatiedatum: 09-03-2023
Uitgeverij: Springer US
Gepubliceerd in: Journal of Behavioral Medicine / Uitgave 5/2023
Print ISSN: 0160-7715
Elektronisch ISSN: 1573-3521
DOI: https://doi.org/10.1007/s10865-023-00402-0

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Mediators of physical activity maintenance during a 12-month randomized controlled trial among breast Cancer survivors

Abstract

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