А вот и не правда. Занимаютсяhttp://forum.bodybuilding.com/showthread.php?t=1790241http://www.fiercestrength.com/hiit-cardio-best-cardio-rapid-fat-loss/HIIT Cardio Workout 8: HIIT Stair-StepperFor this HIIT cardio workout, you can use a stair-master if your gym has one available. As a substitute, you can also use traditional stairs in your fitness center or even in your home or apartment.If you’re using a stair-master machine, increase the level to moderate resistance and take as many steps as possible in 30-45 seconds. Then bring the resistance back down to the machine’s lowest setting and continue at a moderate pace for 60-90 seconds.As with the other HIIT cardio workouts, repeat this process for 20-30 minutes.If you don’t have access to a stair-master and are using real stairs as a substitute, the same guidelines apply. Run up and down the stairs as fast as possible for 30-45 seconds, then walk up and down for the next 60-90 seconds.Continue to repeat this process of high intensity running and low intensity walking on the stairs for about 20-30 minutes.