相关实验视频
Updated: Jul 11, 2026

05:44
Performing In Vivo and Ex Vivo Electrical Impedance Myography in Rodents
Published on: June 8, 2022
2.9K
分段生物电阻可以用作衡量肌肉质量的指标吗?
Kealey J Wohlgemuth1, Todd J Freeborn2, Kathyrn E Southall1
1Neuromuscular and Occupational Performance Laboratory, Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX, US.
Medical engineering & physics
|February 28, 2024
概括
生物电阻谱学 (BIS) 可以评估肌肉质量. 这项研究发现了超声波回声强度和四头肌肌肉中的BIS参数之间的相关性,这表明BIS对于快速评估肌肉质量是有用的.
科学领域:
- 生物医学工程 生物医学工程
- 肌肉骨超声波 肌肉骨超声波
- 生物电阻分析分析
背景情况:
- 生物电阻谱学 (BIS) 正成为一种评估组织质量的方法.
- 超声波回声强度 (EI) 是衡量肌肉组织特征的量化指标.
研究的目的:
- 为了研究四头肌 (大侧肌,大中肌,大中间肌,大腿直肠) 个体的超声波回声强度 (EI) 和生物电阻谱 (BIS) 参数之间的关系.
- 要确定这些关联是肌肉特异性的还是代表整个四头四肢的.
主要方法:
- 22名参与者接受了超声波扫描,以确定四头肌和整个肌肉群的平均EI.
- 用科尔阻抗模型对大腿进行了细分BIS测量.
- 计算了皮尔森相关系数,以评估EI和BIS参数 (R0,R1,C,α,fp) 之间的关联.
主要成果:
- 单个四头肌 (VL,VM,VI,RF) 和整个四头肌的平均EI与BIS参数R0,C和α显著相关.
- 这些发现表明,按EI测量的肌肉组织组成与BIS捕获的电性质之间存在关系.
结论:
- 分段生物电阻谱显示出作为评估肌肉质量的快速和非侵入性技术的潜力.
- 这些相关性支持使用BIS来评估四头肌组织的质量.
相关概念视频
Bode Plots Construction
The Bode plot is an essential tool in control system analysis, mapping the frequency response of a system through a magnitude plot and a phase plot, both against a logarithmic frequency axis. To construct a Bode plot, consider the transfer function H(ω):
Electrocardiogram
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...

