Extracting the respiration cycle lengths from ECG signal recorded with bed sheet electrodes

2013 Joint IMEKO (International Measurement Confederation) TC1-TC7-TC13 Symposium: Measurement Across Physical and Behavioural Sciences

Vehkaoja, A.^1 ; Peltokangas, M.^1 ; Lekkala, J.^1

Department of Automation Science and Engineering, Tampere University of Technology, Tampere, Finland^1

关键词: Mean absolute error;    Mean values;    Respiration cycle;    Respiratory sinus arrhythmia;    Sleep disorders;    Sleep quality;    Textile electrodes;    Young adults;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/459/1/012015/pdf
DOI  :  10.1088/1742-6596/459/1/012015

来源: IOP

【 摘 要 】

A method for recognizing the respiration cycle lengths from the electrocardiographic (ECG) signal recorded with textile electrodes that are attached to a bed sheet is proposed. The method uses two features extracted from the ECG that are affected by the respiration: respiratory sinus arrhythmia and the amplitude of the R-peaks. The proposed method was tested in one hour long recordings with ten healthy young adults. A relative mean absolute error of 5.6 % was achieved when the algorithm was able to provide a result for approximately 40 % of the time. 90 % of the values were within 0.5 s and 97 % within 1 s from the reference respiration value. In addition to the instantaneous respiration cycle lengths, also the mean values during 1 and 5 minutes epochs are calculated. The effect of the ECG signal source is evaluated by calculating the result also from the simultaneously recorded reference ECG signal. The acquired respiration information can be used in the estimation of sleep quality and the detection of sleep disorders.