What causes muscle soreness after exercise?

Asked by: Anonymous

It’s often claimed that the soreness we feel a day or so after a work-out is the result of lactic acid build-up in our muscles during exercise. This is now known to be a myth: the lactic acid rapidly disappears. The real cause of such delayed onset muscle soreness (DOMS) is now thought to be inflammation caused by damage to muscle cells, which repair themselves after a few days.

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