Table 3.

Means (SD) and 95% Confidence Intervals for Average Time Spent in the 3 Physical Activity Intensities and for Knee Osteoarthritis Pain^a

^aSM=self-management, RT=resistance training, RT+SM=resistance training + self-management, CI=confidence interval, OA=osteoarthritis.

^b MPA=moderate-intensity physical activity (3–6 metabolic equivalents [METs]).

^c VPA=vigorous-intensity physical activity (>6 METs).

^d MVPA=combined moderate- and vigorous-intensity physical activity (≥3 METs).

^e Knee OA pain assessed with Western Ontario and McMaster Universities Osteoarthritis (WOMAC) Index pain subscale comprising 5 items eliciting patient ratings on visual analog scale (0–100) of pain severity during walking, stair use, lying in bed at night, sitting, and standing. The pain subscale has a maximum summed score of 500, with higher scores reflecting more pain.