Generally speaking, girls lose weight mainly by aerobic exercise, that is, walking or running on the treadmill mentioned in the title of this article. It is suggested that girls do aerobic exercise at least three times a week for at least 30 minutes each time, and then add some strength exercises appropriately. For example, do kneeling push-ups, sit-ups, freehand squats and other actions. \x0d\\x0d\ Walking or running on the treadmill for more than 30 minutes needs to maintain a certain intensity. This intensity can be measured by the heart rate of the practitioner. The calculation formula is (220- age) *70%, which is the heart rate that the exerciser needs to keep when walking or running on the treadmill. \x0d\ Another method is to measure the self-feeling of practitioners. If the practitioner walks or runs on the treadmill, the self-feeling is controlled between tired and not tired. The reason why practitioners are required to walk fast or run on a treadmill requires a certain intensity is to mobilize more fat to provide energy, so as to achieve the effect of losing weight and finally achieve the effect of stovepipe.