Editing Running (section)

===Midstance===
Midstance is when the lower extremity limb of focus is in knee flexion directly underneath the trunk, pelvis, and hips.  At this point, propulsion begins to occur as the hips undergo hip extension, the knee joint undergoes extension, and the ankle undergoes plantar flexion.  Propulsion continues until the leg is extended behind the body and toe-off occurs.  This involves a maximal hip extension, knee extension, and plantar flexion for the subject, resulting in the body being pushed forward from this motion, and the ankle/foot leaves the ground as the initial swing begins.