Volitional processes in changing physical activity: A randomized controlled trial with individuals with knee osteoarthritis.
Volitional processes in changing physical activity: A randomized controlled trial with individuals with knee osteoarthritis.
StatusPost-Print
Alternative title
Authors
Lorbeer, Noemi
Schwarzer, Ralf
Keller, Jan
Di Maio, Sally
Domke, Antonia
Armbrecht, Gabriele
Börst, Hendrikje
Martus, Peter
Ertel, Wolfgang
Łuszczyńska, Aleksandra
Monograph
Monograph (alternative title)
Date
2025-06
Publisher
Journal title
Health Psychology
Issue
6
Volume
44
Pages
Pages
597–607
ISSN
0278-6133
ISSN of series
Access date
2025-05-23
Abstract PL
Abstract EN
Objective: A health action process approach (HAPA)-based intervention was designed to support moderate-to-vigorous physical activity (MVPA) in individuals with osteoarthritis of the knee (OAK). In secondary analyses of the randomized controlled trial “preventing the impairment of primary osteoarthritis by high-impact long-term physical exercise regimen—psychological adherence program,” we examined long-term effects of the intervention on HAPA determinants and MVPA, and explored the former as mediators of change. Method: N = 241 individuals with OAK (63% women, aged 44–80 years) were randomly assigned to the 12-month intervention condition (IC) or active control condition (CC). Between 2016 and 2020, self-reported HAPA determinants (action and coping planning, maintenance and recovery self-efficacy, action control) and collaborative planning were assessed at 0, 6, 12, 18, and 24 months, accelerometer-assessed MVPA at 0, 12, and 24 months. Multilevel and manifest path models were fit. Results: Compared to the CC, action planning was higher in the IC at 6, 12, and 24 months. Maintenance and recovery self-efficacy were stable in the IC but decreased in the CC. MVPA decreased in both conditions. More action planning in the IC at 12 months was related to higher MVPA at 24 months, but, as in all other models, the indirect effect was nonsignificant. Conclusions: The intervention partly stabilized or enhanced HAPA determinants but did not increase MVPA in a Western, highly-educated sample with OAK. Future work might use blended-care approaches enriched by mobile applications for continuous MVPA support.
Abstract other
Keywords PL
Keywords EN
osteoarthritis
physical activity
randomized controlled trial
Health Action Process Approach
physical activity
randomized controlled trial
Health Action Process Approach
Keywords other
Exhibition title
Place of exhibition (institution)
Exhibition curator
Type
License type
Funder
Time range from
Time range to
Contact person name
Related publication
Related publication
Grant/project name
Collections
Views
6Acquisition Date31.08.2025
Downloads
7Acquisition Date31.08.2025
Altmetrics©
Dimensions
Google Scholar
