Berger W
Department of Neurology, University of Freiburg, Germany.
Neurosci Biobehav Rev. 1998 Jul;22(4):579-82. doi: 10.1016/s0149-7634(97)00047-x.
The typical features of electromyographical (EMG) recordings from children with cerebral palsy (CP) consist of a coactivation of antagonistic leg muscles during the stance phase, a low and tonic activation of extensor EMG, and enhanced stretch reflex excitability with short latency. This characteristic reflex pattern is suggested to reflect an arrested normal maturation. The strong similarity between the walking pattern of CP children (8-16 years of age) and the reflex pattern during the process of learning to walk (7-10 months of age) lets us draw the following conclusion. During normal maturation a close parallelism exists between the control of group I afferent inhibition with the suppression of mono/oligosynaptic stretch reflexes and group II afferent facilitation with the increase of polysynaptic (mainly extensor) EMG responses. This maturation depends on supraspinal control, and does not occur in CP children. In adult patients with a supraspinal lesion, a regression to this early reflex pattern takes place.
脑瘫（CP）患儿肌电图（EMG）记录的典型特征包括：站立期拮抗肌同时激活、伸肌肌电图低水平持续性激活，以及短潜伏期的牵张反射兴奋性增强。这种特征性反射模式被认为反映了正常成熟过程的停滞。CP患儿（8至16岁）的行走模式与学习行走过程中（7至10个月大）的反射模式高度相似，由此我们可以得出以下结论。在正常成熟过程中，I类传入抑制对单/寡突触牵张反射的抑制与II类传入易化对多突触（主要是伸肌）肌电图反应的增强之间存在密切的平行关系。这种成熟依赖于脊髓上控制，而在CP患儿中不会发生。在患有脊髓上病变的成年患者中，会出现向这种早期反射模式的回归。
