1. Jump rope can decrease not only the body fat of the abdomen, the femoral region, the dreast, upperarm, the forearm, and the lower leg but also it can develop the muscle. 2. In increasing the muscle of jump rope, the breast and the forearm are much better than the abdomen and upperarm. In losing weight, the abdomen and the femoral region are more effective than the breast and lower leg. 3. Jump rope can decrease the maxium blood pressure and the minimum blood pressure. It can also help the increasement of cardiovascular endurance, and implementartion of circulation function. 4. Jump rope can decrease the body fat effectively but increase the others(muscle ets) Therefore body can more healthy.