<原著>H-反射に及ぼす振動刺激の影響

概要

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The influence of vibratory stimuli upon the spinal motoneuron pool was investigated electromyographically (H-reflex study) in various muscle tone abnormalities. Vibratory stimulation of 90 Hz. by Hagbarth's apparatus was applied to the extremities (upper and lower extremities of ipsi and/or contralateral side to the leg tested with H-reflex). Usually in normals vibration to the upper extremity especially to the contralateral one makes the amplitude of H-reflex augment, and in hypertonicity (especially in spasticity) it's augmentation is marked. However in hypotonicity, this kind of augmentation could not be recognized but marked reduction of amplitude was seen. H_1 and H_2 reflexes were recorded with short interval double volley in this study, which indicates the spreading of discharge zone (H_1) and some parts of subliminal fringe (H_2), and (H'_1+H'_2/H_1+H_2) indicates excitability of motoneuron pool in the spinal cord in various muscle tone abnormalities. In this report, abnormal excitability in hypertonicity and a certain lacking of excitability in the spinal cord were investigated.
近畿大学の論文
1981-12-25