Function of the Normal Hip

Abstract

The function and inherent stability of the hip are dependent upon the passive osseous and ligamentous structures of the joint and the activity of its musculotendinous structures. The purpose of this chapter is to review these general osseous and ligamentous support structures as well as the neuromuscular control strategies associated with normal hip joint function and mechanics. The musculoskeletal contributions to hip stability during gait will be provided in detail since these data largely represent the largest body of knowledge pertaining to hip function. In addition, this chapter will describe in vivo hip joint muscular strength, kinematics, and kinetics of many common sport motions, some of which have been linked to mechanisms of hip injury.