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首页> 外文期刊>Journal of electromyography and kinesiology: Official journal of the International Society of Electrophysiological Kinesiology >Test-retest reliability of electrical impedance myography in hamstrings of healthy young men
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Test-retest reliability of electrical impedance myography in hamstrings of healthy young men

机译：在健康年轻人腿筋中的电气阻抗幻图的测试 - 保持性可靠性

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摘要

Several techniques are available to assess muscle tissue status, including electrical impedance myography (EIM). Despite being used in the assessment of neuromuscular status in injury and response to exercise, reliability data for hamstrings muscles are limited. Therefore, this study aimed to determine the test-retest reliability of EIM components on hamstrings. Twenty-one healthy males (25.3 +/- 3.4 years; 173 +/- 6.7 cm; and 79.7 +/- 15.9 kg) volunteered for this study. Subjects completed two visits, separated by seven days to collect EIM components (resistance, reactance, impedance, and phase angle) in the longitudinal and transversal axis of hamstrings in both thighs, using a bioimpedance device and Ag/AgCL adhesive contact electrodes. The electrode arrangement was in the muscular belly, half the distance between origin and insertion of the hamstrings. Reliability was determined by the intraclass correlation coefficient (ICC), minimal detectable change (MDC), and Bland-Altman plots. We observed high to excellent reliability (ICC > 0.85) between all EIM components, except for reactance with MDC ranged from 2.0 to 10.8 and the mean bias in Bland-Altman plots ranged from -0.02 to 2.48 (95% limits of agreement from-9.98 to 11.20). From our findings, the hamstrings assessment using EIM technique is reliable to assess muscle tissue; therefore, it enables the evaluation of changes/adaptations in clinical and applied contexts.
机译：有几种技术可用于评估肌肉组织状态，包括电阻抗肌图（EIM）。尽管被用于评估损伤中的神经肌肉状态和运动反应，但腘绳肌的可靠性数据有限。因此，本研究旨在确定腘绳肌EIM成分的重测信度。21名健康男性（25.3+/-3.4岁；173+/-6.7厘米；79.7+/-15.9公斤）自愿参加本研究。受试者完成两次随访，间隔七天，使用生物阻抗装置和Ag/AgCL粘着接触电极，收集两大腿腘绳肌纵轴和横轴上的EIM成分（电阻、电抗、阻抗和相位角）。电极布置在肌肉腹部，距离腘绳肌起点和插入点的一半。可靠性由组内相关系数（ICC）、最小可检测变化（MDC）和Bland Altman图确定。我们观察到，所有EIM组件之间都具有高到优异的可靠性（ICC>0.85），但MDC的电抗范围为2.0到10.8，Bland Altman图中的平均偏差范围为-0.02到2.48（95%的一致性限值为-9.98到11.20）。从我们的发现来看，使用EIM技术评估腘绳肌对评估肌肉组织是可靠的；因此，它能够评估临床和应用环境中的变化/适应性。

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