What Causes Sore Muscles, Stiffness, Aches and Pains the Day After Prolonged Running or Exercise?
Running is a form of eccentric exercise, meaning that the muscle is forced to lengthen while trying to contract. Prolonged or unaccustomed eccentric exercise often leads to pain, tenderness, and stiffness in the muscles hours or even days later. This is known as delayed onset muscle soreness and is very common. The sensation of
