Multi-frequency bioimpedance in human muscle assessment.
Multi-frequency bioimpedance in human muscle assessment.
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DOI：
10.14814/phy2.12354
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发表时间：
2015-04
影响因子：
2.5
通讯作者：
Harrison AP
中科院分区：
文献类型：
--
作者：
Bartels EM;Sørensen ER;Harrison AP
生物阻抗分析 (BIA) 是一种众所周知且经过测试的体重和肌肉健康评估方法。多频 BIA (mfBIA) 设备现在可以对特定肌肉进行整体评估，并在纤维水平上观察肌肉。本研究的目的是检验 mfBIA 可用于评估骨骼肌的解剖、生理和代谢状态的假设。 mfBIA 测量重点关注阻抗、电阻、电抗、相角、中心频率、膜电容以及细胞外和细胞内电阻。对八名健康人类对照受试者和三名选定病例进行了检查，以证明该方法在临床上的应用程度以及与运动训练的关系。电极设置会影响记录的 mfBIA 参数。我们的建议是使用贵金属电极与电导膏结合使用，以适应典型的 BIA 频率，并促进准确的阻抗和电阻测量。 mfBIA 参数的使用（通常相互结合）可用于揭示与肌肉性能相关的对侧肌肉损失、细胞外液差异、收缩状态和细胞运输/代谢活动的迹象。我们的研究结果表明，mfBIA 提供了一种无创、易于测量且非常精确的骨骼肌瞬时评估。
Bioimpedance analysis (BIA) is a well-known and tested method for body mass and muscular health assessment. Multi-frequency BIA (mfBIA) equipment now makes it possible to assess a particular muscle as a whole, as well as looking at a muscle at the fiber level. The aim of this study was to test the hypothesis that mfBIA can be used to assess the anatomical, physiological, and metabolic state of skeletal muscles. mfBIA measurements focusing on impedance, resistance, reactance, phase angle, center frequency, membrane capacitance, and both extracellular and intracellular resistance were carried out. Eight healthy human control subjects and three selected cases were examined to demonstrate the extent to which this method may be used clinically, and in relation to training in sport. The electrode setup is shown to affect the mfBIA parameters recorded. Our recommendation is the use of noble metal electrodes in connection with a conductance paste to accommodate the typical BIA frequencies, and to facilitate accurate impedance and resistance measurements. The use of mfBIA parameters, often in conjunction with each other, can be used to reveal indications of contralateral muscle loss, extracellular fluid differences, contracted state, and cell transport/metabolic activity, which relate to muscle performance. Our findings indicate that mfBIA provides a noninvasive, easily measurable and very precise momentary assessment of skeletal muscles.