Quality of Life, Knee Function, and Physical Activity in Japanese Elderly Women with Early-Stage Knee Osteoarthritis

Abstract

In Japanese elderly women with knee OA, quality of life (JKOM scores) correlated negatively with physical activity (net energy expenditure and step count). The 2 groups undertook similar amounts of physical activity, although those with knee OA exhibited less knee extension strength. Decreased knee extension strength coupled with high levels of physical activity may exacerbate the development of knee OA.