The percent of the predicted peak oxygen uptake achieved by a patient correlates with exercise impairment/intolerance.
NOTE: Severe exercise impairment is equivalent to poor aerobic capacity.
Parameters:
(1) observed peak oxygen uptake in mL per min per kg
(2) predicted peak oxygen uptake in mL per min per kg
percent of predicted peak oxygen uptake =
= (observed peak oxygen uptake) / (predicted peak oxygen uptake) * 100%
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Percent of Predicted Peak Oxygen Uptake
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Exercise Impairment
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> 75%
|
none or minimal
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50 to 75%
|
mild
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< 50%
|
severe
|
where:
• 60% of predicted might serve as a cut-off for moderate exercise intolerance.
