The purpose of this study is to identify which supplemental intervention components added to an online exercise program contribute to the greatest increases in physical activity (total MVPA and percent meeting guidelines \[≥150 min/week of MVPA\]) in adults with knee replacement at 6 and 12 months. Secondary outcomes will examine changes in pain and physical function.
had a knee replacement (including primary, staged or independent bilateral, or revision) at least 12 months ago
have a computer, tablet, or smartphone with active internet access
self-report engaging in less than 60 minutes/week of moderate-intensity physical activity
be English-speaking and able to read consent and study materials written in English
any contraindications to physical activity (e.g., chest pain)
have a scheduled surgery within the next 12 months (e.g., hip or knee replacement)
have a mobility limiting comorbidity unrelated to knee replacement
live outside of the continental U.S
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Treatment groupsSee each treatment group below.
University of South Carolina
Lead sponsor
National Institute on Aging (NIA)
Collaborator