Acute muscle soreness

Acute muscle soreness is the pain felt in muscles during and immediately after strenuous physical exercise. The pain appears within a minute of contracting the muscle and disappears within two or three minutes or up to several hours after relaxing it.

The following causes have been proposed for acute muscle soreness:

Acute muscle soreness reflects one form of exercise-induced muscle damage, the other being delayed onset muscle soreness, which appears between 24 and 72 hours after exercise.

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