LOVE me TENDON

Running performance isn’t just a metabolic contest, it’s a battle to keep your internal machinery from collapsing under load. Our article reveals how tendons soften, hysteresis spikes, and the stretch‑shortening cycle dulls as fatigue accumulates. We look to explain that the widened loop indicates that a larger fraction of your stored elastic energy is being converted into thermal energy (heat) rather than useful kinetic output, forcing muscles into costly active shortening.