Accepted for/Published in: JMIR mHealth and uHealth
Date Submitted: Apr 4, 2020
Date Accepted: Jun 3, 2020
Effects of a 12-week Multifaceted Wearable-based Program for People with Knee Osteoarthritis: A Randomized Controlled Trial
ABSTRACT
Background:
Current guidelines emphasize an active lifestyle in the management of knee osteoarthritis (OA), but up to 90% of OA patients are inactive. We previously demonstrated that an 8-week physiotherapist (PT)-led counselling intervention, with the use of a Fitbit, improved step count and quality of life in people with knee OA, compared to a control.
Objective:
To examine the effect of a 12-week, multifaceted wearable-based program on physical activity and patient outcomes in people with knee OA.
Methods:
A randomized controlled trial with a delay-control design. The Immediate Group (IG) received group education, a Fitbit, access to FitViz (a Fitbit-compatible app), and 4 biweekly phone calls by a PT over 8 weeks. Participants then continued using Fitbit and FitViz independently up to Week 12. The Delay Group (DG) received a monthly e-newsletter. Participants were assessed in Week 13, 26 and 39. The primary outcome was time in daily moderate/vigorous physical activity (MVPA; in bouts of >10 mins) measured with a SenseWear Mini. Secondary outcomes included daily steps, time in purposeful activity and sedentary behaviour, Knee Injury & OA Outcome Score, Patient Health Questionnaire-9, Partners in Health Scale, Theory of Planned Behaviour Questionnaire; and perceived habitual behaviour.
Results:
We enrolled 51 participants (IG: n=26; DG: n=25). Compared to IG, DG accumulated significantly more MVPA time at baseline. The adjusted mean difference in MVPA was 13.1 mins/day (95% CI 1.6 to 24.5). A significant effect was also found in the perceived sitting habit at work (0.7; 95% CI 0.2 to 1.2) and at leisure (0.7; 95% CI 0.2 to 1.2). No significant effect was found in the remaining secondary outcomes.
Conclusions:
A multifaceted program with the use of a wearable device, an app and PT counselling improved physical activity in people with knee OA 4 weeks after the counselling component ended. Clinical Trial: ClinicalTrials.gov: NCT02585323
Citation
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