Assertion: exoskeleton | /r/CapableOf | serve as artificial system
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text: Exoskeletons work in parallel with human muscles, serving as an artificial system that helps the body overcome inertia and gravity, says Hugh Herr, principal investigator for M.I.T.'s Biomechatronics Group, which is developing a light, low-power exoskeleton that straps to a person's waist, legs and feet.