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Reconstruction of the respiratory signal through ECG and wrist accelerometer data.


ABSTRACT: Respiratory rate and changes in respiratory activity provide important markers of health and fitness. Assessing the breathing signal without direct respiratory sensors can be very helpful in large cohort studies and for screening purposes. In this paper, we demonstrate that long-term nocturnal acceleration measurements from the wrist yield significantly better respiration proxies than four standard approaches of ECG (electrocardiogram) derived respiration. We validate our approach by comparison with flow-derived respiration as standard reference signal, studying the full-night data of 223 subjects in a clinical sleep laboratory. Specifically, we find that phase synchronization indices between respiration proxies and the flow signal are large for five suggested acceleration-derived proxies with [Formula: see text] for males and [Formula: see text] for females (means ± standard deviations), while ECG-derived proxies yield only [Formula: see text] for males and [Formula: see text] for females. Similarly, respiratory rates can be determined more precisely by wrist-worn acceleration devices compared with a derivation from the ECG. As limitation we must mention that acceleration-derived respiration proxies are only available during episodes of non-physical activity (especially during sleep).

SUBMITTER: Leube J 

PROVIDER: S-EPMC7471298 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Reconstruction of the respiratory signal through ECG and wrist accelerometer data.

Leube Julian J   Zschocke Johannes J   Kluge Maria M   Pelikan Luise L   Graf Antonia A   Glos Martin M   Müller Alexander A   Bartsch Ronny P RP   Penzel Thomas T   Kantelhardt Jan W JW  

Scientific reports 20200903 1


Respiratory rate and changes in respiratory activity provide important markers of health and fitness. Assessing the breathing signal without direct respiratory sensors can be very helpful in large cohort studies and for screening purposes. In this paper, we demonstrate that long-term nocturnal acceleration measurements from the wrist yield significantly better respiration proxies than four standard approaches of ECG (electrocardiogram) derived respiration. We validate our approach by comparison  ...[more]

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