These exoskeleton boots were made for walking
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These exoskeleton boots were made for walking

Exoskeleton device can reduce energy expended in walking.

The exoskeleton comprises rigid sections attached to the human shank and foot (a) and hinged at the ankle. A passive clutch mechanism and series spring act in parallel with the calf muscles and Achilles tendon. The device in action (b) while the passive clutch mechanism (c) uses a ratchet and pawl that mechanically engage the spring when the foot is on the ground and disengage it when the foot is in the air. 
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