1, hold for 30 seconds, stand with your feet open, keep your back upright, and look straight ahead. Swing your hips back, squat until your thighs are parallel to the ground, then get up and straighten your legs and take off. Don't stop to do squats when you fall, then take off, and so on.

2. Hold for 30 seconds, stand with your feet together, with your hands hanging naturally at your sides, your back and back in an upright position, and your eyes looking straight ahead. This is the initial posture. Bend your knees slightly, spread your feet to both sides and jump slightly. Follow the rhythm, put your hands above your head, and then return to the initial position. The whole process goes on without interruption.

3. Hold for 30 seconds, support your body with your forearms, with your upper arms at right angles to your body, your back upright, your feet together, your knees slightly bent, and your toes touching the ground. This is the initial posture. After that, the hips are slightly raised, the legs are slightly opened to take off to the left and right, and then the initial posture is restored. The whole process of movement should also be carried out continuously.

4. Hold for 30 seconds. Keep your arms straight and support them under your shoulders. Keep your back straight. Your feet are slightly bent and your toes are on the ground. Lift one leg close to your elbow and return. Lift the other leg. Exercise is like climbing a mountain. The movement is continuous and the speed is controllable.