During heavy exercise, which of the following are common respiratory effects?
I. $\dot V$ _E may grow as high as 150 L/min.
II.The respiratory rate approximately triples.
III.The tidal volume increases approximately sixfold.
IV.The tidal volume does not change.

Question

During heavy exercise, which of the following are common respiratory effects?
I.

\dot V

_E may grow as high as 150 L/min.
II.The respiratory rate approximately triples.
III.The tidal volume increases approximately sixfold.
IV.The tidal volume does not change.

Quizplus · Accepted Answer

During maximal exercise, $\dot V$_E may be as high as 150 L/min, approximately 25 times resting $\dot V$_E. The respiratory rate approximately triples, whereas the tidal volume increases approximately sixfold, up to approximately 60% or 70% of the vital capacity (VC).

During Heavy Exercise, Which of the Following Are Common Respiratory V˙\dot VV˙

During Heavy Exercise, Which of the Following Are Common Respiratory $\dot V$