Which item mentions upper body exercise increases dyspnea?

• A. Obesity guidelines - duration
• B. Cardiovascular guidelines - duration
• C. Obesity guidelines - mode
• D. Cardiovascular guidelines - intensity

Answer: (B)

The main idea here is how the length of a cardio workout affects breathing discomfort, especially when the workout includes upper-body work. Upper-body exercise shifts more work to muscles around the chest and arms, which increases the ventilatory demand. When you extend the duration of activity, you accumulate more ventilatory load over time, so dyspnea tends to rise. That’s why the item tied to cardiovascular guidelines and duration is the best match for mentioning that upper-body exercise can increase dyspnea. The obesity guidelines aren’t about breathing during cardio, and the other factors (mode or intensity) don’t specifically capture the cumulative breathing load over time in the context of upper-body work.