The findings of the present study support the growing body of literature which suggests that hip strengthening may be a viable intervention for PFP.10,14,20 Mascal et al18 were the first to demonstrate that an exercise program focusing on hip and trunk strength was effective in decreasing pain, improving hip kinematics, and restoring function in 2 patients with PFP. Subsequent studies by Earl and Hoch,11 Boling et al,4 and Tyler et al30 demonstrated that exercise programs which incorporate hip strengthening result in improved pain and functional outcomes in females with PFP. It should be noted,
however, that control groups were not utilized in these studies.