How does the muscular system change over a perod of seconds?
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As people age, their joints are affected by changes in cartilage and in connective tissue. ... In this process, the amount of muscle tissue and the number and size of muscle fibers gradually decrease. The result of sarcopenia is a gradual loss of muscle mass and muscle strength.
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It is because it contracts and expand . So the muscular system changes over a period of seconds.
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