Self-report and physical performance measures of physical function in hip osteoarthritis: Relationship to isometric quadriceps torque development

Abstract

Objective. Quadriceps strength (knee extensor torque) is an important correlate of physical function in individuals with hip osteoarthritis (OA). However, it remains unclear whether the ability to rapidly generate quadriceps torque in the early phase of muscle contraction (maximal rate of torque development [MRTD]) is also associated with physical function. The purpose of this study was to quantify the independent impact of quadriceps strength and quadriceps MRTD on self-report and physical performance measures of physical function in community-dwelling adults with hip OA. Methods. Ninety-two adults with radiographically confirmed symptomatic hip OA (mean age 62 years) participated. Unilater..