The RR and RT time intervals extracted from the electrocardiogram measure respectively the duration of cardiac cycle and repolarization. The series of these intervals recorded during the exercise test are characterized by a global minimum. We model these series as a sum of a deterministic trend and random fluctuations, and estimate the trend using a multi scale wavelet decomposition. Data analysis performed on a group of 20 healthy subjects and 30 elderly ischemic patients provides evidence that the minimum of the RT series follows the minimum of the RR series, with a mean delay respectively of 67 and 28 beats. © 2014 IEEE.
Time delay between RR and RT heart beat intervals in exercise test of normal subjects and elderly ischemic patients / Cammarota, Camillo; Curione, Mario; Andrea, Quaresima; Marisa, Varrenti. - ELETTRONICO. - Cardiovascular Oscillations (ESGCO), 2014 8th Conference of the European Study Group:(2014), pp. 139-140. (Intervento presentato al convegno 2014 8th Conference of the European Study Group on Cardiovascular Oscillations, ESGCO 2014 tenutosi a Trento nel 25 May 2014 through 28 May 2014) [10.1109/esgco.2014.6847558].
Time delay between RR and RT heart beat intervals in exercise test of normal subjects and elderly ischemic patients
CAMMAROTA, Camillo;CURIONE, Mario;
2014
Abstract
The RR and RT time intervals extracted from the electrocardiogram measure respectively the duration of cardiac cycle and repolarization. The series of these intervals recorded during the exercise test are characterized by a global minimum. We model these series as a sum of a deterministic trend and random fluctuations, and estimate the trend using a multi scale wavelet decomposition. Data analysis performed on a group of 20 healthy subjects and 30 elderly ischemic patients provides evidence that the minimum of the RT series follows the minimum of the RR series, with a mean delay respectively of 67 and 28 beats. © 2014 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
