Degos J D, Malapert D, Louletzian O
Département de Neurosciences, Hôpital Henri Mondor, 94000 Créteil, France.
Rev Neurol (Paris). 2001 Mar;157(3):284-8.
A clinical sign is described consisting of a brief extension of the toes after upward tapping of the plantar surface of their terminal phalanges. Electrological data support the hypothesis of a long loop reflex, which we call the "toe phasic posture reflex" (TPPR). In a preliminary study, this sign was observed in patients with central nervous system disease, especially in subcortical brain disorders regardless of etiology. In Parkinson's disease, it was seen mostly in severe and postural forms. Among 237 healthy subjects, it was observed in none of those under 70 years old (n=116), and in 10p. cent of those over 69 years and doing no sport (n=132), but in none of those doing regularly gymnastics or swimming (n=29). TPPR could thus be a sign of motor and especially postural aging.
描述了一种临床体征，即轻叩趾末节趾骨的足底表面后，脚趾会出现短暂伸展。电生理数据支持长环反射的假说，我们将其称为“趾相性姿势反射”（TPPR）。在一项初步研究中，在中枢神经系统疾病患者中观察到了这种体征，尤其是在皮质下脑疾病中，无论病因如何。在帕金森病中，主要在严重和姿势性形式中可见。在237名健康受试者中，70岁以下者（n = 116）均未观察到该体征，69岁以上且不运动者（n = 132）中有10%观察到该体征，但定期进行体操或游泳者（n = 29）均未观察到该体征。因此，TPPR可能是运动尤其是姿势老化的一个体征。
