Gates LS, Perry TA, Golightly YM, et al. - According to findings, incident knee osteoarthritis (OA) outcomes were not related to whole-body, physiological energy expenditure during recreational activities or time spent in physical activity.

• Using data from six global, community-based cohorts, a total of 5,065 participants with/without knee OA who had no evidence of knee OA and rheumatoid arthritis at baseline were followed for 5-12 years for incident outcomes.

• At baseline, self-reported recreational physical activity (PA) (sport and walking/cycling activities) was recorded as metabolic equivalents of tasks (METS) in days per week (days/wk).

• Non-significant pooled risk ratio estimates were obtained for MET days/wk and painful radiographic knee OA (1.02, 95% CI 0.93, 1.12), radiographic knee OA (1.00, 95% CI 0.94, 1.07) and OA-related knee pain (1.00, 95% CI 0.96, 1.04), respectively.

• Similarly, there were no significant links between hours per week spent in PA and all outcomes.