Data to produce the results of the publication: “Disentangling acceleration-, velocity- and duration-dependency of the short- and medium-latency stretch reflexes in the ankle plantarflexors”

The work presents the systematic evaluation of the acceleration-, velocity- and duration-dependency of the short- and medium-latency stretch reflexes in the ankle plantarflexors. The stretch rflexes are evaluated using EMG measurements and processing with the systematic evaluation performed through thorough stretch perturbation design.In short, we showed that perturbation acceleration, velocity and duration all shape the M1 and M2 response, often via nonlinear or interacting dependencies. Consequently, systematic execution and reporting of stretch reflex and spasticity studies, avoiding uncontrolled parameter interdependence, is essential for proper understanding of the reflex neurophysiology.

本研究针对踝跖屈肌（ankle plantarflexors）的短潜伏期与中潜伏期牵张反射（stretch reflex）的加速度依赖性、速度依赖性及时长依赖性开展系统性评估。本研究采用肌电图（electromyography, EMG）采集与信号处理技术，并通过严谨的牵张扰动（stretch perturbation）设计完成整套系统性评估流程，以此对上述牵张反射进行量化分析。简言之，本研究证实扰动的加速度、速度及时长均会对M1与M2响应产生调控作用，且该调控往往呈现非线性或相互耦合的依赖特性。因此，为正确认识牵张反射的神经生理学机制，在开展牵张反射与痉挛（spasticity）相关研究时，需严格执行系统性实验流程并规范报告内容，同时需避免参数间出现不受控的相互关联。