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ACSM Personal Trainer

Category - Exercise Programming and Implementation

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How is minute ventilation affected by exercise?
  1. There is a sharp initial decrease in the depth of breathing
  2. The more intense the exercise, rate of breathing substantially increases and the depth of breathing has a secondary, less pronounced increase
  3. It can increase up to 30-fold during high intensity exercise
  4. The respiratory rate increases but the tidal volume decreases
Explanation
Answer: B - During exercise, minute ventilation is affected based on intensity as the rate of breathing substantially increases and the depth of breathing has a secondary, less pronounced increase. This is preceded by a sharp initial increase in tidal volume, which continues to increase with intensity.
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