The reliability of respiratory signal extraction methods from electrocardiogram (ECG) data is investigated. To provide a reference, a breathing sensor using a piezo-electric cable was designed and constructed. Two previously established methods , QRS amplitude modulation and respiratory sinus arrhythmia (RSA), are adapted to include the PQRST complex of… (More)
– In this paper we present the benefits of long-term ECG data collection. Extraction of " non-traditional " variables and multimodal information from ECG signals can be used to estimate current, predict future health status, and detect any health anomalies and trends of an individual before subjective signs appear.