RUNNING IN PLACE

Run in place, staying on the balls of your feet and pumping your arms as you normally would when running. For added intensity, move your feet as fast as possible bringing your knees as high as you can with each step.When running in place for HIIT cardio (including cardioacceleration), do it for specified time intervals – ie, 60 seconds of running in place, alternated with rest or in between sets of a lifting exercise (cardioacceleration).