Anisotropy of human muscle via non-invasive impedance measurements
Anisotropy of human muscle via non-invasive impedance measurements
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DOI：
10.1088/0031-9155/42/7/002
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发表时间：
1997-07-01
影响因子：
3.5
通讯作者：
Shiffman, CA
中科院分区：
文献类型：
--
作者：
Aaron, R;Huang, M;Shiffman, CA
结合非侵入性的50 kHz阻抗测量与数学模型的底层结构，我们获得在体内的值的横向和纵向电导率的肌肉的人大腿和（各向同性）的导电性的覆盖皮肤脂肪层。健康男性受试者的结果与其他地方获得的手术暴露或新鲜切除的动物组织和人类的“全球”测量结果一致。此外，使用可旋转探针的测量揭示了通过阻力与角度曲线的最小值的底层肌肉纤维的取向。这些结果为临床和生理研究中研究肌肉特性提供了潜在的有用方法。
Combining non-invasive 50 kHz impedance measurements with a mathematical model for the underlying structure, we obtain in vivo values for the transverse and longitudinal conductivities of the muscles of the human thigh and for the (isotropic) conductivity of the covering skin-fat layer. Results for a healthy male subject are in acceptably good agreement with those obtained elsewhere on surgically exposed or freshly excised animal tissue and with 'global' measurements on humans. Also, measurements using rotatable probes reveal orientations of underlying muscle fibres via minima in resistance versus angle curves. The results suggest potentially useful methods for studying muscle properties in clinical and physiological research.