The influence of gluteus maximus activation on transverse plane hip kinematics and kinetics during a deep squat in persons with femoroacetabular impingement syndrome

Diminished gluteus maximus activation in persons with femoroacetabular impingement syndrome (FAIS) has been proposed to contribute to symptomatic impingement. The purpose of this pilot project was to investigate if targeted gluteus maximus activation influences transverse plane hip kinematics and kinetics of persons with FAIS during a deep squat task. These initial results suggest that cueing patients with FAIS to activate their gluteus maximus may be protective against femoroacetabular impingement and provide functional benefits in tasks requiring deep hip flexion.