Sarcopenic obesity (defined as low muscle mass and strength with high adiposity) requires attention in adults with advanced knee osteoarthritis (OA) due to implications on treatment outcomes. This study aimed to identify muscle function measures and patient characteristics associated with the presence of low muscle mass that could be used to screen and detect sarcopenic obesity in patients with knee OA in the clinical setting.
Cross-sectional study of patients with knee OA and a body mass index (BMI) ≥30 kg/m
Sex and relative grip strength were associated with low muscle mass (AUC 0.774, p < 0.001). Cut-points for low relative grip strength (<0.65 kg/m
Relative grip strength shows promise as a clinical screening measure for sarcopenic obesity in patients with knee OA.