Imagine if the only way of propelling yourself on a bicycle was to reach down and turn one of the wheels with your hand. It would be pretty inefficient, yet that's essentially how a wheelchair works.

Normally, wheelchair users move themselves along by pushing the rims of the two large wheels forward. But installing a set of Rowheels allows them to pull back on the rims, and still move forward.

When the RoChair first appeared back in 2011, the wheelchair used an unorthodox center-mounted drive lever, operated with a rowing motion, to propel it forwards. Four years later the RoChair has been ...

A new wheel design by Salim Nasser -- a NASA engineer, inventor and quadriplegic -- can reduce the repetitive stress injuries that many wheelchair users face. Popular Science reports. With standard ...

When challenged to hack a wheelchair and build the best one possible, students Kate Reed and Stefano Pagani of NuVu innovation school and Nathaniel Tong of Rochester Institute of Technology came up ...