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Cadence prosthetic and pedal for amputee cyclists

Concept, Road Bike, Student Design 9 3763

Cadence prosthetic limb and pedal for cyclistsThe US winner of the James Dyson Awards has been announced. Cadence, by Art Center College of Design student Seth Astle, is a prosthetic limb and pedal system that makes cycling more accessible for below-the-knee amputees. It offers a full range of motion, and better efficiency than traditional prosthetic limbs. The Cadence prosthetic “has an elastomeric band that collects energy while riding, giving the cyclist added muscle strength.  As the foot rotates, kinetic energy snaps the foot and leg back up and around to the top.  By combining the pedal and prosthetic, the cyclists can clip into the pedal, allowing more control and ease of use.”

The split toe design allows the rider to see where he or she need to clip into the pedal, and the special pedal design allows the rider to unclip with a back pedal motion.  Without the muscles in the lower leg, a traditional pivot release pedal system is very difficult for amputees.

As the US winner Seth will receive $1,400 and move on to the international final, announced in November. His design will also be featured in a display at the London Olympics next summer.

Cadence prosthetic limb and pedal for cyclistsFor more information about cycling with a prosthetic leg, check out Amputee in Action (based here in Greenville, SC). The site points out that, according to the Amputee Coalition of America, “there are approximately 1.7 million people living with limb loss” and “one out of every 200 people in the U.S. has had an amputation.” If a product like Seth’s can help a percentage of those people to experience the joy of cycling, it is certainly worthwhile.

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  1. Ross Nicholson September 8, 2011 at 3:27 pm -  Reply

    MIT should grab this guy for their prosthetics lab! Great thinking!

  2. D. September 11, 2011 at 8:02 pm -  Reply

    Kind of creepy to post a photoshopped picture of T. Martin.

  3. Kennedy C. Fawcett February 2, 2012 at 10:18 pm -  Reply

    Where can I obtain such a bicycle Prosthesis?

    • Aaron Dunford July 1, 2012 at 10:57 pm -  Reply

      Depending on where you are in the world, I would love to try and help. Please let me know if you are interested.

  4. Lisa Andrews June 4, 2014 at 12:08 pm -  Reply

    Is the Cadence available for purchase? I am in Salt Lake City, Utah, USA.

  5. steve strassen December 29, 2017 at 1:58 pm -  Reply

    is there an affordable pedal for amputees apparently there is a weight limit on the locking pin type for below amputees so i a little upset as love the pin sort but now as my weight gain im stuck with a cover so the leg starts to slip. any ideas?? i cant afford the maglock as a ridiculous price.

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