The best time to jump rope is 3-6 pm, and should not be in half an hour before meals, 1 hour after meals and 2 hours before bedtime jump rope. Jumping rope can increase the body’s energy consumption, so as to achieve the purpose of weight loss. Because in the morning the human body’s functions are at a relatively low level, not suitable for strenuous exercise, and too late at night exercise will cause sympathetic excitement, thus leading to insomnia. Therefore, in the afternoon 3-6 points jump rope is the most suitable, can jump 4-6 times a week. In addition, 30 minutes before the meal jump rope will increase appetite and is not conducive to weight loss, and jump rope within 1 hour after the meal may cause abdominal pain, indigestion and other adverse reactions. In the hot summer, try to jump rope in the evening to avoid causing heat stroke or dehydration. In addition, for obese patients, it is not recommended to choose jumping rope for weight loss, because jumping rope is easy to increase the hip, knee, ankle joint load, cause joint cartilage damage, accelerate degenerative lesions.