The purpose of tying sandbags is to exercise leg muscles, which will indeed reduce leg fat, but at the same time increase leg muscles. Haha, when the sports results come out, as long as the legs are hard, powerful lines will come out in generate. But this is not what you want. If you want to do exercise to lose weight, you should arrange the whole body exercise reasonably. Excessive exercise of a certain part often affects the overall feeling. After all, the human body is an organic whole, not a building block. You can't take it apart, fix it and put it back.