Standing with a bent knee.
D001696:Biomechanical Phenomena; D006615:Hip / Q000502:physiology; D006801:Humans; D007717:Knee / Q000502:physiology*; D007866:Leg / Q000502:physiology*; D008022:Ligaments / Q000502:physiology; D008954:Models, Biological; D009132:Muscles / Q000502:physiology*; D010329:Patella / Q000502:physiology; D011187:Posture; D012399:Rotation