Sven Zarling demonstrates running
In this photo, Sven Zarling of Germany-based , shows how the prosthetic limb handles a running tempo. The has two operating modes--one for walking, and one for bicycling or other activities. Switching between modes requires the amputee to jerk the leg forward, a movement that may not be feasible for users with limited movement. Redesign requirements call for development of a small remote control that would handle as many as 10 modes.
In May, Otto Bock introduced a new version of its 10-year-old 3R80 rotary hydraulic knee joint designed to enhance the swing phase of the prosthesis. It also handles patients weighing up to 275 pounds, up from the original version's 220 pounds.
Caption text by Jonathan Skillings
July 18, 2007 12:37 PM PDT
Photo by: Fred W. Baker III
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