When does delayed-onset muscle soreness generally occur?

Delayed-onset muscle soreness (DOMS) typically manifests as a result of micro-tears in muscle fibers during intense exercise, particularly when the muscle is subjected to eccentric contractions. This condition is characterized by muscle stiffness, tenderness, and discomfort that frequently escalates in intensity over time.

The correct response regarding the timing of DOMS is that it generally occurs 24 to 72 hours after the conclusion of a training session. This window is attributed to the time it takes for the inflammatory processes to initiate as the muscle heals. The soreness can peak within this timeframe, often reaching its highest intensity around 48 hours post-exercise.

Understanding the timing of DOMS is crucial for exercise recovery planning and programming, as individuals may not feel sore immediately after a workout, leading them to misjudge their recovery needs or the efficacy of their training regimen. The physiological basis behind this delayed response is an important concept within exercise physiology, helping trainers and athletes manage training loads and recovery strategies effectively.