The Nautilus Nitro Seated Calf features unique, trailing linkage with a footrest design and stationary heel rest that help maintain exceptional muscle isolation.

The Nautilus Nitro line is a compact, durable, and ergonomic 26-piece line of variable resistance selectorized strength machines designed to adapt to the way the body moves for more efficient performance and quicker results. Nautilus Nitro equipment utilizes Optimal Strength Curve Technology, which ensures smooth resistance and correct muscle recruitment through the entire movement, as well as dynamically matches the user’s strength curve through a patented four-bar linkage mechanism and converging axis movements. The partially shielded weight stacks are seat-accessible and bright yellow adjustment knobs are easy to identify and user-friendly.

A Nautilus Nitro Seated 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.