The elliptical machine burns about 300 calories in 40 minutes, which is the heat of a bowl of rice, while the runner will participate in more muscle groups and consume slightly more than the elliptical machine. Treadmill is suitable for people with relatively good health, normal function of each joint (especially knee joint and ankle joint) and no major diseases and injuries.
The impact of the treadmill is relatively large (although the impact of a good treadmill is only one-seventh of that of the ground), and the risk is relatively high. Elliptical machine is suitable for people with heavy weight, joint injury or long-term inactivity, with high safety.
As for the fat-reducing effect of treadmills and elliptical machines, in fact, it is more controlled according to the amount and speed of basic metabolism of each person. Different people have different fat-reducing effects at different time and intensity, so we can't simply compare them with instruments.