At the beginning of training, it is not appropriate to do intensive exercises. Put your legs on a waist-high object, sit back with your hips flat, support your legs perpendicular to the ground, keep your knees straight, be hooked by leg press's toes and consciously move backwards, and move your upper body forward forcibly, so that you will be in a straight line by leg press.

The toe hook is beneficial to lengthen the ligaments, tendons and muscles of the legs, and the upper body moves forward to lengthen the trunk, especially the spine. Press one leg for a few minutes, and then change the other leg. After a few days, the leg muscles become soft and elastic, and you can move on to the next step.

Leg press and his supporting legs are straight, and his hands are pressed against leg press's knees, and his hips are pressed forward as far as possible to enhance the extensibility of the muscles in the posterior fossa of the knee joint. Hold leg press's knees with your hands, sit back with your hips, press your upper body forward, and try to make your abdomen stick to your thighs. After this step is completed, you can practice the next step. Hold leg press's calf with both hands from below and press the upper body forward.

Try sticking your abdomen to your thighs and your chest to your knees. After completing this step, you can continue to the next exercise. Do leg press to support your legs straight, hold the soles of your feet with your hands, stick your abdomen to your thighs, stick your chest to your knees, and try to touch your toes with your forehead. After completing this step, you can continue to the next exercise. Hold the soles of your feet with your hands, stick your abdomen to your thighs, stick your chest to your knees, and try to touch your toes with your mouth.

After completing this step, proceed to the next step. Hold the soles of your feet with both hands and touch your toes with your jawbone as described above. After this step is completed, it indicates that the positive pressure section has been completed. Only by practicing step by step can the trunk and legs form a one-to-one relationship, such as abdomen and thighs, chest and knees, head and toes in turn, so as to avoid the gap between trunk and legs.