Author:
Scarpetta M.,Spadavecchia M.,Andria G.,Ragolia M.A.,Giaquinto N.
Abstract
Abstract
In this paper, a method based on the usage of a smartphone
for measuring simultaneously both heartbeat intervals and
respiratory intervals is presented. In particular, the commodity
accelerometer of a smartphone is used for measuring the
seismocardiographic signal generated by heart activity and the
acceleration due to breathing movements. The measurement is
performed with the subject laying down, placing the smartphone on
his/her xiphoid process. Signal processing algorithms are presented
in the paper that can produce an accurate estimation of heartbeat
and respiratory intervals from the measured acceleration signals. A
metrological validation of the heartbeat and respiratory intervals
estimates obtained with the proposed method is carried out by
comparison with measurements obtained using an electrocardiograph
and a spirometer. Two practical examples of applications of the
measured quantities are finally reported, that are the measurement
of the Heart Rate Variability from heartbeat intervals and of the
Respiratory Sinus Arrhythmia from both the heartbeat intervals and
the respiratory signal.
Subject
Mathematical Physics,Instrumentation
Cited by
10 articles.
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