Is Using a Stair Machine the Same as Climbing Stairs?
According to physics, one burns more calories than the other—and the winner might surprise you.
Link :
https://www.wired.com/story/is-using-a-stair-machine-the-same-as-climbing-stairs/
Link :
https://www.wired.com/story/is-using-a-stair-machine-the-same-as-climbing-stairs/