1. The advantage of walking machine is that there is no impact of legs and feet when running, which is safe and secure, and the amount of exercise is much less than that. The walker is pedaled and holds the handle. Under the control of the hydraulic resistance device with equal momentum design, climbing roads or stairs can be simulated. Automatic speed regulation, up and down freedom, timing design according to their own conditions, various shapes. 2. Treadmill, which should be the most recognized fitness equipment. Needless to say, all gyms are standard and functional. Naturally, aerobic training is the main method. Treadmill is a good choice whether it is sweating or warming up before core training. There is no need to overcome the wind resistance caused by air on the treadmill, and the running belt at the foot automatically moves backwards, which is the place where the treadmill really saves effort than running on the horse road. Road running not only needs to overcome wind resistance, but also needs to be adjusted from time to time according to the uphill and downhill pits of road conditions, which actually consumes more energy for the body.