Survival is the ultimate metric for understanding, analyzing, and teaching movement. Locomotion, swinging, throwing, catching, and carrying are the roots of human movement as apex predators.
Movement reflects not just our strength or will to survive and thrive, but also the body’s underlying structure. When I asked David about the relationship between structure and function, he put it simply:
“Structure determines function, but function reshapes structure over time.”

Built to Move
How Structure Shapes Movement