Ensemble averaged kinematic curves for fast speed walking. A: Hip frontal plane angle, B: Hip transverse plane angle, C: Knee frontal plane angle. Time axis is expressed as a percentage of one stride. Thick lines represent the mean of n subjects; vertical error bars represent one standard deviation. Abd=abduction, Add=adduction, MR=medial rotation, LR=lateral rotation, Var=varus, Val=valgus. *indicates hip adduction at PkMOM was less in the PFP group (p=.05) and hip adduction at MxExt was greater in the PFP group (p = .04).