What is the typical onset time for delayed onset muscle soreness (DOMS)?

Delayed onset muscle soreness (DOMS) typically presents itself approximately 24 to 48 hours after engaging in intense or unaccustomed physical activity. The onset of DOMS is a result of microscopic damage to muscle fibers that occurs during exercise, particularly following eccentric contractions. The process involves inflammation and the subsequent repair of these damaged muscle fibers, which contributes to the sensation of soreness.

While it is often noted that some initial soreness can begin as early as 12 hours post-exercise, the peak and most pronounced feelings of soreness usually occur around 24 hours. After this peak, soreness may persist for a few days but generally begins to lessen by 48 hours. This timeframe aligns with established research on muscle recovery and the physiological mechanisms behind DOMS, making 24 hours a reliable mark for onset in most individuals engaging in strenuous activity.