Second, sit-ups. Sit-ups are simple and easy to operate, which is conducive to long-term persistence. They can exercise abdominal and waist muscles and strengthen their core strength. Generally, a group of 20, 3-4 groups can reduce stomach.
Third, jump rope. Skipping rope is not only simple and convenient, but also consumes a lot of calories. When skipping rope, the whole body muscles are driven to participate in sports, which is beneficial to burning whole body fat, but attention should be paid to the correct posture to avoid damaging the knees.