Sternal vibrations during head-out immersion: A preliminary demonstration of underwater wearable ballistocardiography
| Autor: | Omer T. Inan, Andrew M. Carek, Andrew D. Wiens |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Adult
Male Sternum Cardiac output Time Factors Acoustics and Ultrasonics Pilot Projects Accelerometer Vibration complex mixtures Ballistocardiography Root mean square Motion Young Adult Arts and Humanities (miscellaneous) Heart Rate Immersion Heart rate Immersion (virtual reality) Humans Medicine Cardiac Output Underwater medicine.diagnostic_test business.industry Water Signal Processing Computer-Assisted Acoustics Equipment Design Sound Water immersion business Biomedical engineering |
| Zdroj: | The Journal of the Acoustical Society of America. 138:EL342-EL346 |
| ISSN: | 0001-4966 |
| Popis: | Ballistocardiography (BCG) measures vibrations of the body caused by ejection of blood from the heart, and the root mean square (RMS) of BCG measured with a weighing scale trends with cardiac output. However, BCG underwater has not been studied. Head-to-foot BCG signals were recorded with an accelerometer on the sternum of three human subjects. The heartbeats were clearly visible in the signals recorded underwater, and the resting change in RMS BCG was +360 μg (+36%) from air to cold water immersion (27.8 °C) while standing. This is within the 32%-62% increase in cardiac output observed in previous head-out immersion studies. |
| Databáze: | OpenAIRE |
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