The Super Hack Squat is specially designed to train the lower body in a fully guided manner and with maximum back safety, with a special focus on the quadriceps; New backrest tilt system compared to the classic Hack Squat also recruits the gluteal and hamstring muscles more effectively.The Super Hack Squat features a low friction wheel constant load linear sliding system; its backrest and headrest each have 4 adjustable tilt and safety limit switches that adjust to 6 different positions. The footrest is a massive 80 x 60 cm thrust platform made of non-slip material with 3 positions of inclination adjustment.