Mean hip frontal, hip sagittal and knee sagittal plane angular velocity waveforms.

<p>Left column is mean ± standard deviation of acceleration strides averaged across High (thick dashed line) and Low (dotted line). Right column is mean ± standard deviation of steady state strides averaged across High (thick dashed line) and Low (dotted line). Hip abduction velocity, hip extension velocity and knee flexion velocity were defined as positive.