This approximates the stepping action up in the mountains. Three times a week. The Tread Mill simulates walking up steep trails. Again, most people do the exercise wrong. The criteria below is based on walking on the treadmill.
Many people grab the front bar when the treadmill is at an incline.
This is wrong. Three times a week. You will gradually increase the speed. Concentrate on technique first, then increase the speed. The two steps at a time on the Stepmill will feel awkward at first, but hang in there.