Abstract: A high-intensity interval training method comprises supporting an individual upon an upper body engaging element in a forwardly inclined position while the individual is propelling himself in a forward motion on a non-motorized rotatable endless belt; obtaining a performance feedback by sensing at least one of a rotation of the belt and an impact force exerted upon the upper body engaging element by the individual during the exercise cycles; and using the performance feedback to measure performance of the individual and control the exercise cycles to create an exercise regimen that requires the user to operate at at least about 85% of the individual maximum capacity during the high intensity anaerobic intervals.

Abstract: An exercise apparatus is implemented with a frame with a horizontal and vertical component and a rotatable endless belt mounted on the horizontal frame component, the belt having a surface for supporting a user. Vertical frame component has an upper body engaging element connected thereto and adapted to engage the shoulders of a user during a portion of an exercise cycle. An actuator is disposed between the upper body engaging element and the vertical frame component, wherein an increase in actuator length raises the height of the upper body engaging element relative to the belt. The upper body engaging element is positioned at a start position of low height to engage the user in a low-level position at a beginning of the exercise cycle, and the upper body engaging element increases in height as the user accelerates and rises to a fully upright position.