Åstrand test

The Åstrand test is a method to estimate VO₂ max (the maximum rate at which an individual can consume oxygen during exercise), an indicator of cardiovascular fitness.^[1] The test involves performing steady, submaximal exercise on a cycle ergometer at gradually increasing intensity (incremental exercise) while monitoring heart rate. This data is used to predict VO₂ max without requiring maximal exertion.

Åstrand test
Purpose	Measuring VO2 max