Hello, first of all, these two sports are very good! The main difference between the elliptical machine and the treadmill is that the elliptical machine is active (the exerciser needs to run along the track actively), while the treadmill is passive (running forward along the running belt). The former has large friction, the greater the resistance of the whole body's main power, the more it consumes, and the more muscle movement is involved, so it can be adjusted to suit its own strength, enhance its physique and lose weight. Advantages of fat burning training program: reducing the extrusion of body vibration on joints. Disadvantages: there are trajectory constraints. The latter has low friction, mainly because the greater the speed and slope of the lower body muscle mass, the more muscles are consumed. You can strengthen your physique and lose weight by adjusting your strength. Advantages of fat burning training program: body vibration can enhance bone density. Disadvantages: Strong compression on the knee joint. However, the human body is very adaptable. If you use a sport for a long time, your body will adapt quickly, you will feel less sweating, and it is easy to end boredom and enter the bottleneck period. The exercise effect is not obvious! Therefore, after the coach allows and the body meets the basic requirements of the equipment, both can be used in a planned way!