Applicability of Electrical Admittance Plethysmography for Assessing Skeletal Muscle Hemodynamics:A Preliminary Study
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- MATSUMOTO Masataka
- Graduate School of Engineering, Chiba University
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- HANADA Satoru
- Graduate School of Engineering, Chiba University
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- SEKINE Masaki
- Osaka Electro-Communication University
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- TAMURA Toshiyo
- Graduate School of Engineering, Chiba University
Bibliographic Information
- Other Title
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- 電気的アドミタンス法による運動時骨格筋血行動態評価の試み
- デンキテキ アドミタンスホウ ニ ヨル ウンドウジ コッカクキン ケッコウ ドウタイ ヒョウカ ノ ココロミ
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Description
We used admittance plethysmography to evaluate hemodynamic changes in the brachial region in response to a dumbbell exercise. Hemodynamic changes were assessed as the change in tissue blood (ΔVdc) calculated from the DC component of the bio-admittance, the pulse wave height (ΔVac) calculated from the pulsatile (AC) component of the bio-admittance, and the arterial blood flow (ABF) calculated from the first derivative of the bio-admittance pulse wave. The change in vascular tone caused by the metabolic vasodilatation was evaluated using d/a, which is the ratio of post-systolic negative waves to early-systolic positive waves and is derived from the second derivative of the bio-admittance pulse wave. Both ΔVdc and ΔVac were significantly increased after the dumbbell exercise. ABF also was increased after the exercise, but not significantly. Furthermore, d/a was increased significantly after the dumbbell exercise, indicating that metabolic vasodilatation caused angiohypotonia in the active muscles. These results suggest that admittance plethysmography is useful for assessing hemodynamics in exercise-induced hyperemia.
Journal
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- Transactions of Japanese Society for Medical and Biological Engineering
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Transactions of Japanese Society for Medical and Biological Engineering 50 (1), 189-195, 2012
Japanese Society for Medical and Biological Engineering
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Details 詳細情報について
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- CRID
- 1390001205267327232
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- NII Article ID
- 130004494177
- 40019319446
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- NII Book ID
- AA11633569
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- ISSN
- 18814379
- 1347443X
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- NDL BIB ID
- 023766792
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed