Muscle soreness or discomfort that appears 12 to 48 hours after exercise. It is most likely due to microscopic tears in the muscle tissue, and it usually requires a couple of days for the repair and rebuilding process to be completed. The muscle tissue grows back stronger, leading to increased muscle mass and strength.
Delayed onset muscle soreness. This type of muscle soreness normally peaks about 48 hours after a particularly intense or long run.
delayed onset muscle soreness. Muscle soreness that occurs 24 to 48 hours after intense exercise; typically associated with eccentric muscle contractions, and thought to be the result of microscopic tears in muscle or connective tissue.