Corticospinal excitability changes following prolonged muscle tendon vibration

被引：67

作者：

Steyvers, M ^{[1
]}

Levin, O ^{[1
]}

Van Baelen, M ^{[1
]}

Swinnen, SP ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Grp Biomed Sci, Dept Kinesiol, Motor Control Lab, B-3000 Louvain, Belgium

来源：

NEUROREPORT | 2003年 / 14卷 / 15期

关键词：

la-afferent; motor plasticity; motor rehabilitation; muscle tendon vibration; somatosensory stimulation; transcranial magnetic stimulation;

D O I：

10.1097/01.wnr.0000093296.63079.fa

中图分类号：

Q189 [神经科学];

学科分类号：

071006 [神经生物学];

摘要：

The present experiment addressed the time course of corticospinal excitability changes following interventional muscle tendon vibration. Using transcranial magnetic stimulation, motor evoked potentials of the flexor carpi radialis and extensor carpi radialis brevis muscle were recorded for a period of 60 min after cessation of vibration (80 Hz, 0.5 mm, 30 min) to the distal wrist flexor tendons. A delayed corticospinal excitability increase in both the vibrated and non-vibrated antagonistic muscle was observed, with lasting levels of facilitation for the latter. No changes were observed following interventional cutaneous vibration. These results underscore a facilitatory influence of prolonged la-afferent activation on corticospinal excitability. Findings are discussed in light of recent advances in promoting motor recovery after brain injury by somatosensory stimulation.

引用

页码：1901 / 1905

页数：5

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