A device for measuring the electrical bioimpedance with variety of electrode placements for monitoring the breathing and heart rate

2015 ◽  
Author(s):  
Margus Metshein
Keyword(s):  
Heart Rate ◽  
Electrical Bioimpedance

scholarly journals Ventilation and Heart Rate Monitoring in Drivers using a Contactless Electrical Bioimpedance System

2013 ◽  
Vol 434 ◽  
pp. 012047 ◽  
Author(s):  
R Macías ◽  
M A García ◽  
J Ramos ◽  
R Bragós ◽  
M Fernández
Keyword(s):  
Heart Rate ◽  
Heart Rate Monitoring ◽  
Electrical Bioimpedance

Assessment of beat to beat changes in cardiac output during the Valsalva manoeuvre using electrical bioimpedance cardiography

1987 ◽  
Vol 72 (4) ◽  
pp. 423-428 ◽  
Author(s):  
Stephen A. Smith ◽  
Mahmood M. Salih ◽  
William A. Littler
Keyword(s):  
Heart Rate ◽  
Cardiac Output ◽  
Normal Subjects ◽  
Valsalva Manoeuvre ◽  
Impedance Measurements ◽  
Electrical Bioimpedance ◽  
Valsalva's Manoeuvre ◽  
The Mean ◽  
Bioimpedance Cardiography ◽  
Cardiac Stroke Volume

1. Beat to beat changes in cardiac output during standardized Valsalva's manoeuvres were recorded using electrical bioimpedance cardiography in 13 normal subjects. 2. Cardiac output increased by 12 ± 5% after 1 s of straining solely because of an increase in heart rate. Subsequently, cardiac stroke volume and cardiac output fell during the strain to lows of − 40 ± 6% and − 21 ± 3% respectively at 15 s. 3. There was a sustained increased in cardiac output (maximum + 17 ± 4%) in the late post strain period. 4. The mean coefficient of variation in impedance measurements of cardiac output was 6.8% during all parts of Valsalva's manoeuvre, with no single value exceeding 10%.

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