Needs of MD patients

Hi all

I am a uni student doing my final project.
I am trying to design some phyiscal therapy device for early stage MD patients such as stretching device for contractures and etc.

I would like to find out more on the user needs.
I got some questions i like to ask and hope if people are willing to help me and provide me with some answer/advice here...

I will post some questions if there are postive reply in here

thank you all for reading.