Before revision: Mechanism The mechanism of delayed onset muscle soreness is not completely understood, but the pain is ultimately thought to be a result of microtrauma—mechanical damage at a very small scale—to the muscles being exercised .
After revision: or from the build up of acid in the muscle fibers, causing the tissues to be more sensitiveMechanism The mechanism of delayed onset muscle soreness is not completely understood, but the pain is ultimately thought to be a result of microtrauma—mechanical damage at a very small scale—to the muscles being exercised .