To extract Cardiac Output values from impedance cardiography data if subject height/weight was not recorded, set the stroke volume method to Kubicek.
Subject height and weight are not needed for the Kubicek/Rho method, but a value must be entered for height and weight for the analysis to run.
You can easily confirm that the height and weight values are not used in the analysis: take a small section of data and run the analysis twice using drastically different values for height and weight for the two different runs; you will see that the results are identical because the results do not depend on those values.
Height and weight values must be entered for Kubicek/Rho analysis when running AcqKnowledge 4.4.1 or below; the dialog box will be modified in future releases to use different prompts for different stroke volume method preferences.
New series of unshielded 45 cm electrode leads with thin cable; suitable for facial EMG and other areas where lighter, shorter lead cables are required. Use for female Touchproof connectors to pinch clip connectors—connect electrodes to either a C-series amplifier or an MEC. The pinch connectors are light weight and the lead cable tinsel wire […]
The new issue of Psychophysiology has a study “Quantifying rapid changes in cardiovascular state with a moving ensemble average” using MEAP for preprocessing/analysis and BIOPAC hardware and software for data collection, display, and storage. The proof of concept study demonstrates a viable method for the adoption of ICG measures across the field of psychophysiology. MEAP (moving ensemble […]
BIOPAC provides software and hardware that allow for research teams to record and analyze respiration activity in physiological experimentation. Here are a few notable studies covering MRI, ECG, and Laser Doppler Flow measurement. fMRI & Thermal Perception: The neural mechanisms underlying thermal perception (how hot or cold we perceive the temperature to be) have not been fully […]