Which term is used to describe the energy cost of physical activities?

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Multiple Choice

Which term is used to describe the energy cost of physical activities?

Explanation:
METs describe the energy cost of physical activities. A MET, or metabolic equivalent, standardizes how hard an activity makes the body work by comparing it to resting energy use. One MET equals the oxygen we consume at rest—about 3.5 mL O2 per kg per minute, roughly 1 kcal/kg/hour. This lets us categorize activity intensity: light (<3 METs), moderate (3–6 METs), and vigorous (>6 METs). In rehabilitation, MET values guide exercise prescription and pacing to match a patient’s tolerance and goals. SpO2 measures blood oxygen saturation, not energy cost. Diaphoresis is sweating, a symptom, not a measure of energy expenditure. Orthostatic refers to changes in blood pressure with position, also not about energy cost.

METs describe the energy cost of physical activities. A MET, or metabolic equivalent, standardizes how hard an activity makes the body work by comparing it to resting energy use. One MET equals the oxygen we consume at rest—about 3.5 mL O2 per kg per minute, roughly 1 kcal/kg/hour. This lets us categorize activity intensity: light (<3 METs), moderate (3–6 METs), and vigorous (>6 METs). In rehabilitation, MET values guide exercise prescription and pacing to match a patient’s tolerance and goals. SpO2 measures blood oxygen saturation, not energy cost. Diaphoresis is sweating, a symptom, not a measure of energy expenditure. Orthostatic refers to changes in blood pressure with position, also not about energy cost.

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