Skipping rope is a whole-body exercise, but after a long time, you will have small muscles. I don't know if you are a boy or a girl. If you are a girl, I suggest you spend an hour every day practicing jumping to lose weight. But in small groups. 300 for each group, and then 500. After each group, take a break for a few minutes. Then rub your calf and pat it. Finally, don't sit down at once, take a walk and rest. You will be much thinner in a month. But remember not to jump right after eating.