What Causes Muscle Soreness
Your muscles get sore after a hard workout. Find out how and why it happens.
Most weight trainers do not know the reason their muscles get sore after a workout. Muscle soreness is not caused by lactic acid, as many people believe.
- It is caused by microtrauma to the muscle fibers.
- This causes calcium molecule leakage from the muscle fibers (as well as an accumulation of histamines, potassium, prostaglandins and local edema).
- The sensation of pain and soreness comes due to the pressure of localized edema (fluid retention) on nerve endings, not by the muscle damage itself.
- Negative-accentuated training often results in severe muscle soreness as it causes the most muscle damage.
- Muscle soreness can be an indication of growth.
- Light training of the same exercise can help decrease it.
- It is possible to train when the muscle is sore.
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