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Uptodate Reference Title
Oxygen pulse and heart rate during cardiopulmonary exercise testing
Oxygen pulse and heart rate during cardiopulmonary exercise testing
The oxygen pulse (VO2/HR) versus time in a normal individual (green diamonds) is contrasted with that in a patient with cardiovascular limitation (black squares). The black squares demonstrate the early plateau of V̇O2/HR, indicating limitation of cardiac function likely reflecting reduced stroke volume recruitment.
VO2: oxygen uptake; HR: heart rate.
Reproduced from: Malhotra R, Bakken K, D'Elia E, Lewis GD. Cardiopulmonary Exercise Testing in Heart Failure. JACC Heart Fail 2016; 4:607. Illustration used with the permission of Elsevier Inc. All rights reserved.
