What is the biological basis for muscle soreness after workouts?
Muscle soreness after workouts, known as Delayed Onset Muscle Soreness (DOMS), occurs primarily due to micro-tears in muscle fibers from intense or unfamiliar exercise. This damage stimulates an inflammatory response, leading to swelling and pain. The body then undergoes a repair process, during which muscle fibers regenerate and strengthen. The severity of muscle soreness can depend on factors like exercise intensity, type, and individual fitness level. Additionally, the accumulation of lactic acid during intense workouts may contribute to immediate discomfort but is not directly responsible for DOMS.