EVALUATING THE CENTER OF GRAVITY TO THE THE CENTER OF MASS OF THE BODY
The idealized center of gravity of our bodies follows the vertical lines in the graphics below. If we examine the posture of almost anyone, we can observe variances from these lines. Very common is a “head forward” posture, where the ear point is significantly forward of the point indicated on the shoulder(click on the right graphic to see these points more clearly).
3) Another thing we can do is hang by our arms. It has only been the last 400,000 year or so that we have not used our arms to move around in trees. It is helpful to think of our arms as pulling us and our legs as pushing us along, as four-legged animals do. (more on hanging) Hanging puts the spine into traction, lengthening it and pumping spinal fluid. We only need to hang by enough of our body weight to stretch the shoulder muscles and can do this by simply holding onto something above our heads and bending our knees.