The MWPTP will exist in three forms, and will be given to three randomly assigned groups of subjects. An instruction only group (IO) will receive general instructions on how to best propel their wheelchair. A feedback group (FB) will receive additional instruction in wheelchair propulsion using a monitor displaying a random combination and amount of biomechanical feedback variables, such as cadence and proportion of time spent in propulsion. Subjects will be coached to develop an appropriate propulsion style that minimizes all of the predetermined feedback measures, which indicate poor technique and maximize all of the graphical measures indicating good propulsion technique. A control group (CG) will receive only testing which will be identical to the testing procedures followed by the IO and FB groups.