Over the course of several million years, evolution has deeply shaped human physiology and biomechanics with a direct and profound implication for how we are able to move as a species. Our movement capacities as well as many subconscious behavioral patterns are inherited from this collective process of adaptation and natural selection.
Originally, long before the rise of highly specialized sports, we were movement generalists. The natural life our ancestors lived was one of varied movements and efforts, near-constant alertness and adaptive responsiveness to frequent and often unpredictable changes. These very diverse movement skills modern human beings have universally inherited played a major role in ensuring the survival of our species, allowing us to seize opportunities and escape threats. They used to be fundamental attributes of hunter-gatherers.
Still our bodies and minds are designed for the world of hundreds of thousands of years ago and both expect us to live like our ancestors!
They are structurally adapted to a wide range of movements and efforts, ranging from brief in duration but extreme in exertion to low intensity and prolonged.