Cyclical sports are known for placing mechanical load on the same tissues over and over again, which is why overuse injuries are so common in these activities. In long-distance running, it’s the lower extremities that need to bear and absorb most of the stress, and consequently, the legs are the most commonly injured part of the runner’s body. These are the most common running-related overuse injuries among runners.

Something has bothered me for years in sports tech: we treat the human body like a collection of separate dashboards. Heart rate, sleep quality, GPS, stress scores. Each metric lives in its own silo, reported as if it operates independently. But here's what we know from physiology and what every athlete intuitively feels: Everything is connected. Every cell, every mitochondrion, every nerve.