Figure 1.

Ensemble averages (±1 SD, shaded) for hip angles before (Pre) and after (Post) repeated sprint exercise in the sagittal (top), frontal (middle), and transverse (bottom) planes across a running stride cycle in people with femoroacetabular impingement syndrome (FAIS, n = 15), asymptomatic cam morphology (CAM, n = 16), and in healthy controls (Control, n = 18). Mean differences shown as post-pre (right). Dashed vertical lines indicate foot contact. No significant group-time interactions were observed as a result of a 2-way repeated measures analysis of variance using statistical parametric mapping. abd, abduction; add, adduction; ext, extension; ext rot, external rotation; flex, flexion; int rot, internal rotation.