First, practice from the simple movement of leg press. You can also exercise by stretching, holding your waist with your hands, landing your feet on the ground, your feet are parallel, your knees are bent, your center of gravity moves down slowly, your legs are kicked back, and you move alternately from left to right. When you do leg press, you should do it step by step, and don't make too many moves to avoid pulling. After exercise, you should relax your calves by rubbing your legs.

Achilles tendon is a strong and tight tendon between heel and calf. Achilles tendon is about 15cm long and is the thickest tendon in human body. It is formed by the fusion of the tendon of triceps brachii (soleus and gastrocnemius) above the heel.