The action of the pedal rope is different, and the function is also different. He can exercise a lot of abdominal muscles, chest muscles and leg muscles. Personally, I think it is of little use. It is good to help girls do sit-ups.

1. Grasp the handles at both ends of the stretcher with both hands, with legs shoulder-width apart, and the stretcher is parallel to the chest and separated from the chest by a certain distance. The two arms slowly and forcefully extend to both sides in a steady motion until the two arms are completely straight, and then stop and slowly relax the two arms to restore the stretcher to its original state. During the whole process, try not to get close to the chest, so as to avoid chest clamping. This exercise method can exercise the chest muscles, biceps brachii and shoulder muscles well.

2. Put the puller behind your back, grab both sides of the puller with both hands, separate your legs, slowly pull the puller until the arm reaches the limit, and then slowly let go, and so on for many times. Mainly to exercise latissimus dorsi, but also to exercise shoulder and arm muscles.

3. Separate your legs, support both ends of the stretcher on your chest (back) with your hands, stretch it to both sides in the up and down direction to the limit of your arms, and then slowly let go. Repeated practice like this can exercise your chest muscles (latissimus dorsi) well.

4. Step on one end of the stretcher and fix it, put the other end in one hand, palm up, keep other places still, and stretch your arms up to exercise arm strength and wrist strength. Or stretch the stretcher and keep it stretched, and put the other hand under the wrist of the stretcher-pulling hand, so that the stretcher-pulling hand can stretch the stretcher hard. Pay attention to other places, just hold hands up and down on your wrist and exercise your wrist.

5. Tie both ends of the stretcher to your feet and stretch your legs to both sides hard until you reach your limit, so that you can exercise your leg muscles by repeated practice.

6. Find two tensioners, one end of which is fixed at a high place and droops naturally, and the other end is held by both hands on both sides of the body, and the waist is bent hard and gently straightened, so that the waist strength and muscles can be exercised many times.