Jumping rope is the best, but it is best to jump 1 hour, which can be done several times. 100 or 200 as a group, and the rest time shall not exceed half a minute. It is best to jump for half an hour after dinner. After finishing, massage the calf, otherwise it won't form strong muscles. That's how I persisted for about a month and lost 8 pounds. However, I should also control my diet properly and don't eat high-calorie things. I hope you can persist ~ ~