What muscles are more prone to delayed onset muscle soreness?

• A. Weak muscles
• B. Tight muscles, store and release energy better
• C. Large muscles
• D. Small muscles

Answer: (B)

Delayed onset muscle soreness happens after muscles endure unaccustomed or especially eccentric loading, causing microscopic damage to fibers and a local inflammatory response. Tight muscles tend to be stiffer and less compliant, so when they are forced to lengthen under load, the fibers experience greater strain and more microtrauma. That higher mechanical stress makes soreness more likely and often more pronounced a day or two after the workout. The idea that tightness relates to better elastic energy storage and release helps explain why these muscles might take on more stress during eccentric actions, increasing the chance of soreness.

In contrast, soreness isn’t determined simply by how strong a muscle is or how large or small it is. Any muscle can develop DOMS after unfamiliar or intense eccentric exercise, but the pattern tends to be more noticeable in muscles with reduced flexibility and stiffness that converts more of the stretch into internal strain during lengthening.