A robotic leg with a big toe and motors that can “change gear” like a bicycle can enable a wearer to walk up stairs and slopes
23 November 2022
A robotic leg with motors that work like bike gears could let a wearer walk up stairs – which many people find impossible with unpowered prostheses.
Most prostheses have no motors to actively assist walking, but instead are either passive or help only by altering the resistance of a joint’s swing, controlled by a low-power microchip. The few actively powered prostheses on the market are relatively heavy and bulky, with short battery lives, and have achieved limited success. …