Question

A woman performs a 30-minute exercise bout at an intensity above her lactate threshold. After 3 months of endurance training, she then performs the exact same exercise bout (which is now below her post-training lactate threshold). During this post-training exercise bout, it is observed that compared to her pre-training exercise session she has a (1) lower heart rate, (2) higher stroke volume, (3) lower ventilation, (4) higher blood HCO3-, and (5) lower RQ. Explain how these post-training responses occur (i.e., what physiological adaptations occurred with training that account for the observed responses?)

          A woman performs a 30-minute exercise bout at an intensity above her lactate threshold. After 3 months of endurance training, she then performs the exact same exercise bout (which is now below her post-training lactate threshold). During this post-training exercise bout, it is observed that compared to her pre-training exercise session she has a (1) lower heart rate, (2) higher stroke volume, (3) lower ventilation, (4) higher blood HCO3-, and (5) lower RQ.
Explain how these post-training responses occur (i.e., what physiological adaptations occurred with training that account for the observed responses?)

Added by Amanda A.

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