Development of an Ergonomic Wheelchair Pushrim

This research will have three parts.

The first part will include completing propulsion and braking tasks with the subject's original handrims. After the initial testing, new handrims (NaturalFit, PalmRim, and a new standard handrim) will be installed on the subject's wheelchair and subjects will again be asked to complete another set of propulsion and braking tasks. Subjects will also be asked to complete a questionnaire to assess wrist and shoulder pain and undergo an examination of the condition of the palm of their hand.

For the second part of the study, subjects will be asked to participate in a 4-month trial use period of the new handrims on their wheelchair.

In the third part of the study, subjects will complete the final set of propulsion and braking tasks and complete a follow-up questionnaire.

Natural-Fit

Inclusion criteria

• Use of a manual wheelchair as a primary means of mobility (over 40 hours per week)
• Use a standard handrim
• Between the ages of 18 and 55
• Has normal hand function

Exclusion criteria

• Pressure Sores

PalmRim

Inclusion criteria

• Use of a manual wheelchair as a primary means of mobility (over 40 hours per week)
• Use a vinyl-coated handrim
• Between ages 18 and 55
• Has impaired hand function

Exclusion criteria

• Pressure sores