Leg Press & Calf Raise Option for Multi-Gym Systems The Life Fitness Parabody Leg Press is suitable for the following Parabody Multigyms: GS1, GS2, GS4, CM3 One of the best ways to target the leg muscles, especially the difficult quadriceps, is to use a leg press as part of your daily strength training. Suitable with the GS1, GS2, GS4 & CM3 Parabody Multi-Gyms the Life Fitness Leg Press is an asset for anyone serious about getting in shape. The seated position keeps your body in the correct position for optimum results & with limited injury risk, unlike traditional squats, which can put undue strain on the delicate knee joints. By adjusting your feet slightly you can also target your glutes.