Jumping in place can improve heart and lung function, strengthen leg strength and relax the muscles and bones of the whole body. The exercise method is to stand upright naturally and hang your arms at your sides naturally. When jumping, the heel leaves the ground, the body rises, and when falling, the knee bends slightly (plays a buffering role), and the heel touches the ground. As the body warms up, the whole foot can leave the ground, but don't jump too high, as long as the whole body shakes.

Jump for 2 ~3 minutes 1 time, rest 1 minute and jump for 2 ~3 minutes. Breathe naturally during exercise, don't hold your breath. Use intermittent practice or practice every other morning and evening. The jumping speed should not be too fast, just close to 1 sec 1 time. The effective range of heart rate is 1 10 ~ 150 beats/min.