Predictors of Exercise Adherence in Patients with Meniscal Tear and Osteoarthritis

Publication date: Available online 11 June 2016
Source:Archives of Physical Medicine and Rehabilitation
Author(s): Yetsa A. Tuakli-Wosornu, Faith Selzer, Elena Losina, Jeffrey N. Katz
ObjectiveTo identify predictors of poor exercise adherence in patients with osteoarthritis (OA) and meniscal tear.DesignSecondary analysis of data gathered over the first 12 weeks in the Meniscal Tear in Osteoarthritis Research (MeTeOR) Trial, a multicenter, randomized controlled trial.SettingSeven referral centers in the US.ParticipantsThis analysis was conducted in 325 of the 351 MeTeOR patients, each of whom was ≥ 45 years old and had meniscal tear and osteoarthritic changes on imaging studies; 26 were excluded due to missing data from which to derive the primary outcome variable.InterventionsAll patients received a structured supervised exercise program focused on strengthening, along with prescribed home exercises; half were randomized to also receive arthroscopic partial meniscectomy.Main Outcome MeasurePoor exercise adherence through 12 weeks, defined as performing <50% of prescribed exercise.Results38% of the MeTeOR cohort showed poor exercise adherence. In the multivariate model, adjusting for treatment group, those who earned ≤ $29,000/year had 1.64 times the risk of non-adherence (95% CI: 1.10, 2.43) than those who earned >$100,000 /year; and, those without baseline pain with pivoting and twisting had 1.60 times greater risk of non-adherence than those with these symptoms (95% CI: 1.14, 2.25).ConclusionLow income was associated with poor exercise adherence among patients ≥ 45 with osteoarthritis and meniscal tear, as was absence of pain with pivoting and twisting. Our findings highlight the need for further research into exercise adherence and for interventions to enhance adherence among those with low incomes.



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