从不同肌肉中记录的跨脊柱唤起的潜在招募曲线的分析,最佳的西格功能模型
Andreas Skiadopoulos1,2, Maria Knikou1,2,3
1Klab4Recovery Research Program, The City University of New York, Staten Island, New York, United States of America.
PloS one
|January 22, 2025
概括
这项研究比较了八个Sigmoidal模型来分析跨脊柱唤起的潜能招募曲线. 推使用博尔茨曼和极值函数模型,分别用于前肌和前肌,以准确分析神经生理生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
- 生理学 生理学 生理学
背景情况:
- 跨脊柱唤起潜能 (TSEP) 招募曲线是评估运动行为和恢复的关键神经生理生物标志物.
- 现有的研究缺乏对西格形模型进行比较分析,以适应TSEP招聘曲线.
研究的目的:
- 为了比较八个西格形模型的性能,以适应TSEP招募曲线的前肌和前肌.
- 从TSEP数据中确定最适合用于估计生理相关参数的模型.
主要方法:
- 八个西格米形模型 (博尔兹曼,希尔,Log-Logistic,Log-Normal,韦布尔-1,韦布尔-2,戈珀茨,极值函数) 适应了TSEP招聘曲线.
- 模型的选择是基于Akaike信息标准,并使用Akaike差异和权重进行进一步评估.
- 类间相关性和布兰德-阿尔特曼分析评估了最适合模型之间的参数一致性.
主要成果:
- 在模型性能中观察到肌肉特定的依赖性.
- 博尔兹曼和希尔模型最适合于索莱斯TSEP曲线;极端值函数和博尔兹曼模型对前椎是最佳的.
- 在每个肌肉的顶级模型之间,在关键参数 (例如,斜率,拐点) 中发现了很好的一致性.
结论:
- 推使用博尔茨曼模型来计算单体TSEP招募曲线,而推使用极端值函数模型来计算前节.
- 这些模型提供了可靠的参数估计,提高了神经生理生物标志物分析的可靠性.
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...