Survey on Manual Wheelchair

Hello!
We are students from the University of the Philippines taking up BS Industrial Engineering. One of our subjects is Product Design and Development and as our project for the course, we aim to improve the current design of the manual wheelchair by adding certain features that could benefit most of its users.
If you're willing to help us in this endeavor, please answer this very short survey:

https://docs.google.com/spreadsheet/viewfo rm?formkey=dF9wWmZTMHJSVXVDa2lNNWxVTmFDWHc 6MQ

Thank you very much!