Release the weight box pawls by squeezing the handle and move the weight over the crane. Adjust the weight to your level, identical on both sides. Sit on the chair. Rest your back against the backrest. Place your feet on the support leg and push back against the support legs as you slowly straighten your knees. After your legs are fully straightened, slowly return to the starting position while keeping control of the returning chair.
Strengthening of the legs, thigh and calf muscles. Improvement of the the knee and hip joints mobility.