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Prediction Of Peak Oxygen Consumption In Patients With Cardiac Disease Using A 3 Minutes' Step Test Combined With Heart Rate Variability., Chia-Hao Liu, Shu-Chun Huang, Jong-Shyan Wang

Rehabilitation Practice and Science

Background: Peak oxygen consumption (Peak VO_2) is a recognized indicator of overall functions of the cardiac-vascular system, and the cardiopulmonary exercise test (CPET) is considered the golden standard for determining peak VO_2. However, there are limitations to performing CPET, including high cost, long testing time, staff risks and participant’s discomfort during the test. In contrast, Submaximal exercise testing can be an alternative for assessing cardiovascular fitness with minimal risk and lower cost. The step test, one of the submaximal exercise tests, was the first to be described as a method for assessing exercise capacity in the early 20th century. Various …