Place both T4Ds in the stable position with the large Force Pedal cups attached. Position one foot on each Force Pedal and assume a strong high plank with hands directly beneath the shoulders and the body in a straight line. Drive one knee forward toward the chest while extending the opposite leg back, mimicking a running motion. Alternate legs in a smooth, controlled rhythm while maintaining a neutral spine and stable upper body. Increase speed progressively, ensuring control and proper technique are maintained throughout.