The FreeMotion Calf features foot pedals that move independently, allowing for single or dual foot movements, and multi-pivoting pedals that pivot at the ankle and heel to target specific muscles in the calf, ankle, and foot.

The Free Motion Ground Zero line is a revolutionary 18-piece strength training system that overcomes the limitations of traditional fixed pattern exercises by incorporating functional training with real-life results, allowing you to "Train the Way You Move." The Ground Zero line functionally trains numerous muscle groups of the body simultaneously in natural, real-life, compound movement patterns, for an integrated total body workout. Unique machines include the Step, which develops balance, coordination, and lower body strength for activities such as climbing stairs, and the Lift, which trains the leg, arm, and back muscles to work together for spinal stabilization and activities that require lifting. The Single and Dual Cable Cross boast ground breaking proprietary features and provide an almost limitless range of diverse total body training exercises.

A FreeMotion Ground Zero Calf is, and can best be described as follows: A Calf Machine is a plate-loaded or selectorized piece of gym equipment designed to strengthen the calf muscles of the lower leg when the user lifts the loaded or selected weight by plantar flexing the ankle, or moving the forefoot away from the body. A calf machine is available in variations including Seated, Standing, 45 Degree, Donkey, Angled, Rotary, and others.