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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Gait Posture. 2014 Sep 6;41(1):81–85. doi: 10.1016/j.gaitpost.2014.08.014

FIGURE 1.

FIGURE 1

Ensemble average knee flexion angle (A) and external knee moment (B) profiles of patients with no patellofemoral osteoarthritis (PFOA), mild PFOA, and severe PFOA during the stance phase of gait.