Date Available


Year of Publication


Degree Name

Master of Science (MS)

Document Type

Master's Thesis




Kinesiology and Health Promotion

First Advisor

Dr. Michael Samaan


Femoroacetabular impingement syndrome (FAIS) is an abnormal physical hip morphology that causes functional changes and pain during gait. Mechanical gait differences in this population require further biomechanical investigation to elucidate characteristics unique to this group. Fixed speed gait trials were performed on force plates and analyzed in addition to isokinetic strength testing to find a multitude of biomechanical variables including joint moment, joint power, joint work, and peak joint angle. This work has discovered evidence of muscular deficits at the hip, specifically hip extension, as well as knee joint power contributions to gait when compared to controls. These findings suggest the FAIS population may be compensating at the knee for hip musculature deficits or disfunction. Additionally, verbal cueing may be implemented to correct altered gait patterns and assist in pain reduction during gait. When given a targeted verbal cue to promote trunk extension, the FAIS alters their ambulation entirely kinematically and maintains the kinetic profile of their standard gait. The control group, when given the cue, altered their knee joint kinematics which suggests that further research on gait retraining with cues must be designed to ensure kinetic changes occur in the intervention group when desired.

Digital Object Identifier (DOI)

Funding Information

National Institutes of Health UL1TR001998 and KL2TR001996 2019-2021.