快速跨脑磁刺激绘制的可靠性和有效性,用于肌肉在活跃收缩下
Nahian S Chowdhury1,2, Wei-Ju Chang3,4, Rocco Cavaleri5
1Center for Pain IMPACT, Neuroscience Research Australia, 139 Barker Street, Randwick, Sydney, NSW, 2031, Australia. n.chowdhury@neura.edu.au.
BMC neuroscience
|August 30, 2024
概括
快速横磁刺激 (TMS) 测绘是一种有效且有前途的方法,用于像体和四头肌这样的非上肢肌肉. 虽然它显示了与传统映射相似的结果,但可靠性需要进一步改进.
科学领域:
- 神经科学是一个神经科学.
- 神经肌肉生理学 神经肌肉生理学
- 康复技术 康复技术 康复技术
背景情况:
- 跨磁刺激 (TMS) 是一种非侵入性脑刺激技术.
- 快速映射是一种更快的TMS数据收集方法,但其有效性仅限于休息期间的上肢肌肉.
- 绘制需要主动收缩的肌肉,如体和四头肌,具有独特的挑战.
研究的目的:
- 确定快速TMS绘图的有效性和可靠性,用于非上肢肌肉 (大腿肌,四头肌).
- 在快速和传统的绘图方法之间比较地图参数 (体积,面积,重心).
- 评估不同肌肉群的测量误差和可靠性.
主要方法:
- 十一个健康的参与者接受了两次快速和传统的TMS测绘,以测绘肌肉和四头肌肌肉.
- 分析了包括体积,面积和重心 (中侧,前后) 在内的地图参数.
- 使用类内相关系数 (ICC) 和贝叶斯系数 (BF) 来评估可靠性和有效性.
主要成果:
- 在肌肉中发现了低到中等的测量误差 (%SEMeas = 10-32).
- 相对可靠性各不相同:地图体积 (ICC = 0.63-0.99),地图面积 (ICC = 0.11-0.86),相对可靠性差到优秀,CoG (ICC = 0.25-0.8) 的相对可靠性差到优秀.
- 贝叶斯证据支持大多数结果的快速和传统地图之间的等价性,表明有效性.
结论:
- 快速TMS映射是非上肢肌肉中传统方法的有效替代品,提供类似的参数估计.
- 虽然有效性得到了支持,但这些肌肉的快速映射的可靠性是混合的,需要进一步调查.
- 快速映射为具有挑战性的神经肌肉映射提供了一个有希望的,时间效率高的替代方案,待方法的改进.
更多相关视频
09:52Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation
Published on: February 23, 2020
9.1K
10:39Localizing Function-specific Targets for Transcranial Magnetic Stimulation in the Absence of Navigation Equipment
Published on: May 23, 2025
520
相关概念视频
01:20Motor Unit Stimulation
When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
01:22Muscle Stimulation Frequency
The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...