Boosting Exercise Adherence in Knee Osteoarthritis

UC will be delivered by trained clinicians at participating sites. The study team will provide clinicians with guidance and training to standardize core aspects of PT, aligned with best practice recommendations. Clinicians must provide enrolled Veterans with at least 4 PT visits, spaced at least weekly so that Veterans can practice home exercise and receive guidance in exercise progression. All PT visits must be completed within 3 months.

BOOST-OA includes components that are integrated into PT visits (concurrent), focused on behavior initiation, as well as components that occur after PT visits have ended (sequential), focused on behavior maintenance. Concurrent components will be delivered in conjunction with usual care PT visits. Clinicians must provide enrolled Veterans with at least 4 PT visits, spaced at least weekly. PT visits must be also completed within 3 months. Sequential components will be delivered by a health coach via phone or video. Health coach sessions will be conducted every other week for the first 2 months (months 4-5), monthly for an additional 3 months (months 6- 8), and every other month for the last 4 months (months 9-12; 9 total contacts). Calls will address strengthening and stretching exercises (≥3 times per week), as well as overall physical activity (e.g., minutes / steps).