Simultaneous Measurements of Shifts of the Center of Gravity Caused by Ventilation and Cardiac Motions towards Three Body Axes
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概要
- 論文の詳細を見る
A method is described for the simultaneous measurements of three dimensional shifts of the gravitational center of the body caused by ventilatory and cardiac motions. The measuring system consists fundamentally of three load cells which support an aluminum die-casting platform. Measurement of the shift towards the X axis (front-to-back) was achieved by double integration of the outputs of load cells in order to convert acceleration into a shift of gravity. The records of a volunteer subjects measured with ECG and ventilatory flow showed two cardinal oscillations; one coinciding with the heart rate and the other with the ventilatory frequency. This became clear when recorded through either a low-pass or high-pass filter. Animals who breathed a SF_6-O_2 mixture into one side of the lungs or those with partial occlusion of a bronchus showed distinct changes in the pattern of the Y axis (right-to-left). These preliminary experiments convinced us that the system can serve as a non-invasive monitoring system of cardiopulmonary functions.
- 東海大学の論文
著者
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YAMAUCHI Toshitada
Department of Internal Medicine, Kobari General Hospital
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OHTA Yasuyo
Department of Medicine, Tokai University School of Medicine
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Nakamura Chizuko
Department Of Pharmacy Kumamoto University Hospital
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Nakamura Chizuko
Department Of Physiology School Of Medicine Tokai University
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Suzuki Kuninori
Department Of Biology Faculty Of Science University Of Tokyo
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Suzuki Kuninori
Department Of Medicine Toyama Central Hospital
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IMAOKA Kaoru
ANIMA Corporation
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Yamauchi Toshitada
Department Of Internal Medicine Ii School Of Medicine Tokai University
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Yamauchi Toshitada
Department Of Medicine School Of Medicine Tokai University
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Ohta Yasuyo
Department Of Medicine Tokai University School Of Medicine
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Nakamura Chizuko
Department of Chemistry, Faculty of Science, The University of Tokai
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