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What metabolic product(s) might account for her sore muscles and her feeling of muscle weakness?
Wiki User
∙ 7y ago
Lactic acid build-up has been blamed for prolonged muscle fatigue and discomfort; however, this concept is not widely accepted today.
Lactic acid is produced during intense levels of exercise when the oxygen demands of the muscle fibers increase beyond what the blood is capable of delivering. To produce the energy needed, the body begins another process, which works in the absence of oxygen. Lactic acid-a byproduct of this process-locks up your muscles, and because it is an acid it causes your muscles to experience that burning sensation.
But lactic acid is completely washed out of the muscles within 30 to 60 minutes after you finish riding. Since muscle soreness does not show up until 24 to 36 hours later, scientists have been exercising their brains to come up with another explanation.
Small tears in the muscle are now thought to be the main culprit for sore muscles.
Wiki User
∙ 14y ago
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