Exercise-based cardiac rehabilitation is associated with a normalization of the heart rate performance curve deflection.

ABSTRACT: The heart rate (HR) rises with increased power output, whereby in most healthy individuals, the slope of HR levels off with higher intensity. This corresponds to a downward deflection of the heart rate performance curve (HRPC). Conversely, in patients after myocardial infarction, an upward HRPC deflection is frequently observed that is especially pronounced in patients with compromised left ventricular ejection fraction. To investigate whether regular endurance training during cardiac rehabilitation might normalize HRPC, data of 128 male patients were analyzed. All patients performed three exercise tests: at baseline, after 6 weeks, and after 1 year. Ninety-six patients exercised regularly according to guidelines for 1 year (training group, TG), and 32 stopped after 6 weeks (control group,

SUBMITTER: Heber S 

PROVIDER: S-EPMC6852149 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature