SPEAKER_01 28:15–29:34
So, this ties into what we just discussed regarding capturing cues. When you're getting somebody upright in some variation of standing, you must have ground contact relative to gravity to sense position. The number of contacts determines relative motion potential. Since the foot contacts the ground when upright, it's a significant influence. Therefore, you need to establish those contacts. The simplest way to recognize this is to stand on your own feet and remove certain ground contacts to understand how it affects position. For example, rolling to the outside edges of both feet removes medial foot contacts that provide internal rotation. Thus, to get somebody upright, you must establish effective contacts, which will be the limiting factor in achieving certain positions.
ground contactfoot mechanicsaxial skeletal positioninternal rotationpositional awareness