Discuss ACSM 030-444 Exam Topic 5 Question 18

During mild to moderate exercise, pulmonary ventilation increases primarily as a result of increased

ATidal volume.

BBreathing frequency.

CVital capacity.

DTotal lung volume.

Suggested Answer: A

Get Premium 030-444 Questions as Interactive Web-Based Practice Test or PDF Real Exam Format Detailed Explanations Instant Access Get Your Practice Test

26 comments · newest first

Oretha 5 months ago

True, but I feel tidal volume is the primary change.

Dick 5 months ago

But what about B) Breathing frequency? That could also be a factor.

Cecilia 6 months ago

I agree, tidal volume increases during exercise.

Leoma 6 months ago

I think it's A) Tidal volume. It makes sense.

Lorrie 6 months ago

I agree with A, but B plays a role too!

Francine 6 months ago

Wait, is it really just tidal volume? That seems too simple.

Mindy 6 months ago

Vital capacity doesn't really change much during exercise, right?

Noel 6 months ago

I thought it was B) Breathing frequency.

Cyndy 7 months ago

Definitely A) Tidal volume!

Ilene 7 months ago

A. Tidal volume is the right answer. The lungs need to take in more air with each breath during a workout.

Nu 7 months ago

Haha, D. Total lung volume? That's just silly, everyone knows the lungs don't actually get bigger during exercise.

Sylvia 8 months ago

I'm not sure, but I'm guessing C. Vital capacity seems like it would be important for exercise.

Marget 8 months ago

B. Breathing frequency is the correct answer. The body increases breathing rate to get more oxygen during exercise.

Alline 8 months ago

I think the answer is A. Tidal volume increases during exercise to meet the body's increased oxygen demand.

Raina 8 months ago

I’m confused because I thought vital capacity was more relevant to overall lung function, not just during exercise. Is it C)?

Helene 8 months ago

I feel like we did a practice question similar to this, and it focused on tidal volume as well. I’m leaning towards A).

Marci 8 months ago

I’m not really sure, but I remember something about breathing frequency being important too. Could it be B)?

Kirk 9 months ago

I think the answer might be A) Tidal volume since we talked about how it increases to meet oxygen demand during exercise.

Gabriele 9 months ago

The key here is "primarily." I think A) Tidal volume is the best answer, since our breaths get deeper even if the rate also increases during exercise.

Verda 9 months ago

I'm leaning towards D) Total lung volume. Exercising expands our lung capacity to handle the extra air flow, right? But I'm not 100% sure.

Essie 9 months ago

B) Breathing frequency seems like a good possibility. Our breathing rate tends to go up during exercise to meet the body's increased oxygen demands.

Susana 9 months ago

Hmm, I'm not sure about this one. I know ventilation increases, but I'm not confident which specific factor is the primary driver. I'll have to think it through carefully.

Leonora 10 months ago

I think the answer is A) Tidal volume. During exercise, our breathing becomes deeper to bring in more oxygen.

Solange 3 months ago

↳ replying to Leonora

I thought it was more about breathing frequency. What do you think?

Janessa 4 months ago

↳ replying to Leonora

Yeah, deeper breaths help with oxygen intake!

Rory 5 months ago

↳ replying to Leonora

I agree, tidal volume definitely increases during exercise.

ACSM 030-444 Exam - Topic 5 Question 18 Discussion