How does the work expenditure of a 60-year-old to overcome static mechanical forces during normal breathing compare to that of a 20-year-old?

A. The work expenditure of the 60-year-old is only 80% of that of the 20-year-old
B. The work expenditure of the 60-year-old is 20% higher than the work expenditure of the 20-year-old
C. The work expenditure of the 60-year-old is 200% greater than that of the 20-year-old
D. The work expenditure is approximately equal


Answer: B

Health Professions

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