The Nautilus XPLoad Plate Loaded Prone Leg Curl inherits the superior biomechanical design common to all Nautilus strength machines with dependent movement arms that prevent body twist and make movement easy to control, a four-bar linkage design that overcomes the limitations of standard leverage movements, and a bench pad angle that keeps the head above the heart while exercising, eliminating dizziness after the user stands up.

The Nautilus XP Load line is intelligent, plate loaded equipment for high-performance workouts and it follows the body's every move. Rugged, yet easy to use, each Nautilus XP Load machine correctly addresses the strength curve of the body part it's designed to train and combines the smooth feel of free weight equipment with the controlled, biomechanical movement of a machine. Optimal Strength Curve Technology matches the body's potential increases and decreases in strength. Instead of forcing users to follow an incorrect path of motion, XP Load equipment provide a proper movement path.

A Nautilus XPLOAD Plate Loaded Prone Leg Curl is, and can best be described as follows: A Leg Curl is a plate-loaded or selectorized piece of gym equipment available in variations including: Seated, Prone (lying), Bent-over, Kneeling, or Standing, and is designed to strengthen the Hamstrings muscles of the legs during Strength Training. The user lifts the loaded or selected weight by flexing the knees against an adjustable lower leg pad in a curling motion, bringing the feet closer to the hips.