NC State researchers are in the early stages of developing a newly designed exoskeleton that can improve the efficiency of walking by 7 percent and ultimately the life of modern humans. 

The exoskeleton is a lightweight device that enhances and works in harmony with the user’s calf muscles, off-loading the muscle, thus reducing the energy consumption during the contractions. The exoskeleton uses a mechanical clutch to hold a spring that expands and contracts by the ankle movements, therefore aiding the Achilles tendon and calf muscles.

The device does not run off electrical or chemical energy and reduces the metabolic costs for healthy users under normal conditions. The exoskeleton weighs a little more than a pound, and according to their research about the exoskeleton published in Nature, most users got accustomed to it after 20 minutes of use. 

As of now, the device only works when users are walking. It is a big step toward improving efficiency of walking and walking conditions, whether for a hiker, an elderly person or someone who needs a boost in efficiency to save their energy, according to their research.