Abstract Summary
The biological ankle joint can change its stiffness in response to various locomotor tasks (e.g., load carriage), but the direct effect of ankle stiffness on metabolic power during various tasks is not fully understood. We evaluated the effect of ankle stiffness during load carrying tasks on metabolic power with a robotic foot-ankle prosthesis emulator. Current data suggest a trend for a higher stiffness needed to decrease metabolic power when carrying additional load, supporting the premise that modulating ankle stiffness may be important for reducing metabolic power across various tasks.
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