What is walking? (orthopedist and biomechanic dialogue)

Orthopedist (referring to the biomechanist). We receive the results of our patients' walking studies from your laboratory. There are indicators that characterize this process. But I can't read your numbers. Your terminology is unfamiliar to me. It is clear to me that the most important thing for an orthopedist and trauma surgeon is to restore such an important process for a person as walking. But when I thought about this seemingly obvious position, I realized that I do not know the essence of this process. And then there are the results of your research that I don't understand. Tell me what walking is.
Biomechanic. Okay. I propose the following plan for our conversation:
- the temporal structure of the stride;
- the kinematics of the legs, pelvis and spine;
- external forces, leg support reactions, muscle work;
- the foot as a shock absorbing system;
- movement of body parts when walking in the frontal plane.