The leg press is a weight training exercise in which the individual pushes a weight or resistance away from them using their legs. The term leg press also refers to the apparatus used to perform this exercise. The leg press can be used to evaluate an athlete's overall lower body strength (from knee joint to hip). It has the potential to inflict grave injury: the knees could bend the wrong way if they are locked during a leg press. There are two main types of leg press: * The diagonal or vertical 'sled' type leg press. Weight disks (plates) are attached directly to the sled, which is mounted on rails. The user sits below the sled and pushes it upward with their feet. These machines normally include adjustable safety brackets that prevent the user from being trapped under the weight. * The 'cable' type leg press, or 'seated leg press', commonly found on multigyms. The user sits upright and pushes forward with their feet onto a plate that is attached to the weight stack by means of a long steel cable.