期刊
CLINICAL NEUROPHYSIOLOGY
卷 127, 期 5, 页码 2286-2293出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.clinph.2016.02.014
关键词
Motor control; Interlimb reflexes; Bimanual movements; Locomotion; Neural coupling; Cooperative movements
In recent years it has become evident that, in a number of functional movements, synergistically acting limbs become task-specifically linked by a soft-wired 'neural coupling' mechanism (e.g. the legs during balancing, the arms and legs during gait and both arms during cooperative hand movements). Experimentally this mechanism became evident by the analysis of reflex responses as a marker for a neural coupling. It is reflected by the task-specific appearance of reflex EMG responses to non-noxious nerve stimulation, not only in muscles of the stimulated limb, but also, with same long latency, in muscles of meaningful coupled (contralateral) limb(s). After a stroke, nerve stimulation of the unaffected limb during such cooperative tasks is followed by EMG responses in muscles of the (contralateral) coupled affected limb, i.e. unaffected motor centres support synergistically acting movements of the paretic limb. In contrast, following stimulation of the affected limb, no contralateral responses appear due to defective processing of afferent input. As a consequence, it may be therapeutically possible to strengthen the influence of unaffected motor centres on the performance of affected limb movements through training of cooperative limb movements required during activities of daily living. (C) 2016 Published by Elsevier Ireland Ltd. on behalf of International Federation of Clinical Neurophysiology.
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