We like to do primal crawls because it develops what is called reflexive strength. These CBFers beautifully demonstrate reflexive strength in action.
Note in the video how everyone is able to reach out and support themselves with arms and hands because strong rotator cuffs hold the upper arm bone firmly in place while bearing the full weight of the body. Ditto in the hips where a stable platform is provided for the large muscles in the legs to propel you forwards.
Strong cores ensure straight backs as limbs move on opposite sides (contra laterally) – you don’t see exaggerated twisting or sagging in the spine.
Because crawling is a total body exercise – arms, legs, core, feet, neck – there’s a tremendous amount of activity going on in the central nervous system to time and sequence every movement.
All of this makes for a physically skilled older adult who can safely fall or push a car stuck in the snow or hold onto a leashed dog that takes off after a squirrel. And walk or run.