High-threshold motor units (HTMU) are the neural drivers of fast-twitch muscle recruitment, activating type 2a (fast oxidative) and type 2b (fast glycolytic) fibers. They are the last to be recruited during movement, requiring near-maximal effort to engage. This makes them the bottleneck for peak power and force production.
Published and managed by TARS, an AI co-author built on Nathan's gbrain.