An experimental study of influence of different training plans on changes in structure of Achillis tendon and its significance in military training / 解放军医学杂志

ABSTRACT

Objective To evaluate the characteristics of remodeling of Achillis tendon under different training methods, including the functional and structural changes in its insertion, and to extend these experimental findings to improve strategies of prevention of military training injuries. Methods With a special equipment to provoke running and jumping, adult rabbits were trained under different loads and the length of time, then the Achillis tendons were harvested. The tendons and their attachment were examined with light and scanning electron microscopy, as well as analyzed biomechanically. Results The findings showed that the structure of tendon became weak at the fourth week of excessive exercise, as evidenced by changes in micro-structures. Conclusion Excessive load is the major cause of enthesiopathy of the Achillis tendon, and training in cycles may have positive effects in prevention of the pathology.