Why do my biceps twitch constantly for days after a heavy arm workout?
1. Introduction Biceps twitch constantly for days after an intense arm workout due to profound motor unit fatigue and localized cellular electrolyte depletion. The intense physical demand of heavy resistance training causes the peripheral nerves controlling the muscle fibers to become hyper-excitable. This neurological exhaustion, combined with micro-tears in the muscle tissue, causes the nerves … Read more