010-111 · Question #69
Which of the following is the correct energy expenditure in METs associated with an exercise oxygen uptake of 28 ml穔g-1穖in-1?
The correct answer is A. 8. One MET equals a resting oxygen uptake of 3.5 ml/kg/min, so dividing an exercise VO2 by 3.5 converts it directly to METs.
Question
Which of the following is the correct energy expenditure in METs associated with an exercise oxygen uptake of 28 ml穔g-1穖in-1?
Options
- A8
- B10
- C98
- D112
How the community answered
(35 responses)- A86% (30)
- B3% (1)
- C3% (1)
- D9% (3)
Why each option
One MET equals a resting oxygen uptake of 3.5 ml/kg/min, so dividing an exercise VO2 by 3.5 converts it directly to METs.
Dividing the exercise VO2 of 28 ml/kg/min by the standard resting metabolic equivalent of 3.5 ml/kg/min yields exactly 8 METs; this is the ACSM-defined conversion formula for expressing relative exercise intensity as a multiple of resting metabolism.
A value of 10 METs would require a VO2 of 35 ml/kg/min (10 x 3.5), not 28 ml/kg/min.
98 results from multiplying 28 by 3.5 instead of dividing, which inverts the conversion formula.
112 has no valid derivation from 28 ml/kg/min using any standard MET conversion method.
Concept tested: Converting exercise VO2 to METs using 3.5 ml/kg/min
Source: https://www.acsm.org/education-resources/books/guidelines-exercise-testing-prescription
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