Q1. What are the contributions in this paper?
Ue-frequency BCG ( natural frequency about 1 to 2 c/s ) represents the velocity of the center of gravity, provided that the damping is much more than critical.
Physical basis of ballistocardiography. III.
H.C. Burger,Abraham Noordergraaf +1 more
TLDR
Two methods for calculating the amplitude characteristic of the high-frequency BCG, the difference in movement of subject and BCG taken into account, are compared and discussed.About:
This article is published in American Heart Journal.The article was published on 1956-02-01 and is currently open access. It has received 40 citations till now. The article focuses on the topics: Ballistocardiography.read more
Citations
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Journal ArticleDOI
Oscillatory properties of the human body
V. L. Karpman,G. V. Sadovskaya +1 more
TL;DR: The frequency of body oscillations caused by application of single impulses to a number of supine subjects has been measured, as well as the elasticity coefficient of their underlying tissues, and the logarithmic decrement of extinction of oscillations.
Journal ArticleDOI
Changes in Forcecardiography Heartbeat Morphology Induced by Cardio-Respiratory Interactions
TL;DR: In this paper , two respiratory-modulated parameters were considered, namely the left ventricular ejection time (LVET) and a morphological similarity index (MSi) between heartbeats.
Book ChapterDOI
Herz- und Kreislaufdiagnostik
J. Rutenfranz,J. Ehrengut-Lange,H. M. Kirschsieper,F. Graser,M. Kaltenbach,H. Klepzig,G. Koch,P. Palmié,Hermann Berger,K. Bühlmeyer +9 more
TL;DR: Eine einfache und vor allem im Neugeborenen- und fruhen Sauglingsalter unentbehrliche Methode ist die Ermittlung der Herzfrequenz mit dem Stethoskop as mentioned in this paper.
Journal ArticleDOI
ECG-Free Heartbeat Detection in Seismocardiography Signals via Template Matching
TL;DR: In this paper , the authors proposed a template matching based approach for ECG-free heartbeat detection in Seismocardiography (SCG) signals via normalized cross-correlation as heartbeats similarity measure.
Journal ArticleDOI
A simple, calibrated, ultra-low frequency ballistocardiograph.
TL;DR: There is general agreement that the ultra-low frequency system is the most satisfactory and the physiological basis of ballistocardiography and its clinical application require further study.
References
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Studies on the estimation of cardiac ouptut in man, and of abnormalities in cardiac function, from the heart's recoil and the blood's impacts; the ballistocardiogram
Journal Article
Certain Molar Movements of the Human Body produced by the Circulation of the Blood.
Journal ArticleDOI
Some technics for recording the ballistocardiogram directly from the body
William Dock,Felix Taubman +1 more
TL;DR: The motion of the body recorded by a sphygmograph applied to the head, by a photocell partly shaded by a ruler across the shins, or by a coil in a magnetic field provides a satisfactory ballistocardiogram.