Question

if the oxygen is not sufficient during vigorous exercise,muscles start:​

Answer 1

Answer:

muscles start weakening

Answer 2

Answer

When you exercise, your respiratory rate increases. This is true regardless of whether you exercise by stationary methods such as weight lifting, or by a traveling method such as jogging or biking. Clearly, an active body needs more oxygen than a body at rest. The reason for this lies in the complex chemical processes in your muscles and your bloodstream.

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