Mechanical pull of the peroneal tendons on the fifth ray of the foot

Abstract

The purpose of this study was to measure the deflection angle of both peroneal tendons as they turn around the lateral malleolus. A reduction of the angle occurs when the subject stands on tip-toes, in the manner of dancers and sprinters. This reduction of deflection angle leads to higher mechanical efficency. Females subjects were found to be superior to males in their ability to plantarflex the ankle, straightening out their tendons more than do men. The traditional approach to exercising muscles around the ankle ignores the varied mechanical situations which occur during the practice of sports. The data presented should provide guidelines for rehabilitation program of the injured ankle and lateral border of the foot.