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Derivation Of Respiration From Electrocardiogram During Heart Rate Variability Studies, Lingeng Zhao
Derivation Of Respiration From Electrocardiogram During Heart Rate Variability Studies, Lingeng Zhao
Theses
A method was developed to derive the respiration signal from the ECG signal based on the observation that the body-surface ECG is influenced by electrode motion relative to the heart and that fluctuations in the mean cardiac electrical axis accompany respiration. S-Plus programs were developed to calculate the changes in the value of the mean cardiac electrical axis during respiration from a two lead ECG signal and to generate a continuous ECG-derived respiratory signal from the angle information.
Data were taken from 9 healthy subjects during rest, paced breathing and exercise. The respiration was derived from the recorded ECG signals. …