Definition: By-product of anaerobic glycolysis. Lactic acid is used as fule by the heart, but excessive lactic acid slows contraction in skeletal muscles and is though to cause muscle soreness if not flushed out of the body.
Lactic Acid
By Paige Waehner, About.com
Created: January 5, 2004
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
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