Physics in Prosthetic and Orthotic

Do you know why prosthetist and orthotist have to study physics?

As we all know, physics is a science that deals with studying the natural behaviour of living things, matter, energy, and physical changes. However, Physics has a comprehensive course scope. Several sub-disciplines have been applied to learning prostheses, so prosthodontists should understand how each device works and used it as basic knowledge in the development of orthotics as well,
for example.

1. Kinetic study
2. Kinematic study
3. Sequential muscular activity study
4. Energetic study, etc.