Willemse R B, Koelman J H, Bour L J, Ongerboer de Visser B W
Graduate School Neurosciences Amsterdam, Department of Neurology, The Netherlands.
Electroencephalogr Clin Neurophysiol. 1994 Dec;93(6):440-3. doi: 10.1016/0168-5597(94)90151-1.
Different soleus H-reflex tests are used in the study of neurophysiological mechanisms of motor control. We studied the interdependence pattern of a number of soleus H-reflex tests, i.e., vibratory inhibition, the ratio of the reflex response to direct muscle potential (H/M ratio) and the homonymous recovery curve with a principal components analysis in 48 healthy controls and 38 patients with signs of the upper motoneuron syndrome. In controls, the analysis showed 3 independent principal components (PCs). Vibratory inhibition and H/M ratio loaded on separate components. Late facilitation and late inhibition variables of the recovery curve loaded on the third component due to the positive correlation (P < 0.001) between these variables. In spastic patients the analysis identified 4 independent PCs corresponding with vibratory inhibition, H/M ratio, late facilitation and late inhibition variables, respectively. The findings suggest that the mutual independence of the different soleus H-reflex tests in patients with the upper motoneuron syndrome has retained the control situation to a large extent.
不同的比目鱼肌H反射测试被用于运动控制神经生理机制的研究。我们在48名健康对照者和38名有上运动神经元综合征体征的患者中，采用主成分分析法研究了一些比目鱼肌H反射测试的相互依存模式，即振动抑制、反射反应与直接肌肉电位的比值（H/M比值）以及同名恢复曲线。在对照组中，分析显示有3个独立的主成分（PCs）。振动抑制和H/M比值加载在不同的成分上。由于恢复曲线的晚期易化和晚期抑制变量之间存在正相关（P < 0.001），它们加载在第三个成分上。在痉挛患者中，分析确定了4个独立的主成分，分别对应振动抑制、H/M比值、晚期易化和晚期抑制变量。研究结果表明，上运动神经元综合征患者不同比目鱼肌H反射测试的相互独立性在很大程度上保留了对照情况。
