Place body on declined pad in prone position with hips beneath weighted sled. Put feet against sled platform and extend legs and hips to release locks. Grasp side handles.
Flex legs and hips to lower sled until knees are almost completely flexed or thighs are just before resting completely on upper body. Return, keep knees slightly flexed. Repeat.
Hips have to stay on pad. Lower sled just before hips may raise off pad. Position feet about hip- or shoulderwide. Knees point in same direction as feet. Heels have to stay on platform.