yet another cause of impaired ankle rocker. Be sure to do a thorough exam!

“Many pathogenic manifestations of equinus occur due to the center of pressure displacement that is seen in diseased states. Typically, the center of pressure on the foot can be measured 6 cm anterior to the ankle during gait, but with equinus, it is shifted distally and laterally. The pull of the Achilles tendon cannot adequately compensate for the new distal and lateral center of pressure and, as a result, an overall pronatory force remains.”

http://lermagazine.com/article/equinus-its-surprising-role-in-foot-pathologies