Mayo Clinic proceedings
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Mayo Clinic proceedings · Feb 2022
Updated Reference Standards for Cardiorespiratory Fitness Measured with Cardiopulmonary Exercise Testing: Data from the Fitness Registry and the Importance of Exercise National Database (FRIEND).
To provide updated reference standards for cardiorespiratory fitness (CRF) for the United States derived from cardiopulmonary exercise (CPX) testing when using a treadmill or cycle ergometer. ⋯ These updated cardiorespiratory fitness reference standards improve the representativeness of the US population compared with the original standards.