Question

select the correct answer
which statement about aerobic exercise is not true?
a. aerobic exercise strengthens the muscles that help us breathe.
b. aerobic exercise is carried out for a sustained period of time.
c. regular aerobic exercise eliminates the risk of heart or lung disease.
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Explanation:

1. Option A is true: Aerobic exercise strengthens the diaphragm and intercostal muscles that support breathing, improving respiratory efficiency.
2. Option B is true: Aerobic exercise is defined as sustained, low-to-moderate intensity activity that uses oxygen for energy production, performed over extended periods (typically 20+ minutes).
3. Option C is false: Regular aerobic exercise reduces the risk of heart and lung disease by improving cardiovascular health, lowering blood pressure, and enhancing lung capacity, but it cannot fully eliminate all risk factors such as genetics, pre-existing conditions, or lifestyle choices like smoking.

Answer:

C. Regular aerobic exercise eliminates the risk of heart or lung disease.