Muscular cramps occur after heavy exercise. Why?

1.	Muscular cramps occur after heavy exercise. Why?
Answer» When an aerobic respiration takes place in our muscles and glucose is converted into lactic acid because of the lack of oxygen. muscle cramps are caused. they can be relieved by hot water bath or massage because this increases the blood circulation which increases the supply of oxygen. Because of the formatic of lactic acid during respiration in insufficient supply of oxygen

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