Bowflex Max Trainer M9 - the perfect combination of cross trainer and stepper. The Max Trainer M9 enables HIIT training that is easy on the joints in the smallest of spaces. The Bowflex Max Trainer M9 offers a 10-inch touchscreen display and, in conjunction with the JRNY app, almost unlimited training options. The Max Trainer M9 combines the advantages of a stepper and cross trainer in one compact training device. Climbing stairs on a stepper primarily strengthens the leg, buttock and hip muscles. In addition, climbing stairs is a more strenuous exercise for the muscles and body than walking or jogging on level ground. This is due to the height that has to be overcome with each step. The higher exertion is accompanied by increased calorie consumption. On a cross trainer, the upper body is involved in the training due to the movable arm bars, so that almost the entire musculature is working. The Bowflex Max Trainer M9 takes the intense training experience of a stepper and adds the upper body workout component of a cross trainer. The result is a joint-friendly, calorie-burning, full-body HIIT workout.