各種神経疾患患者閉眼立位に対する振動刺激の効果について : 運動障害を伴う神経疾患のバイオフィードバック療法の可能性を探って

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In normal subjects of standing position, the application of the vibration to M. triceps surae causes the backward falling reaction. This phenemenum is known as the vibration induced falling (VIF) reaction. We investigated this VIF reaction of the patients with various neuromuscular disorders, and inspected the mechanism of the postural disturbances in these patients. 5 patients with Parkinson disease, 5 with spinocerebellar degeneration (SCD), 1 with familiar spastic paraplegia (FSP), 1 with left-side frontal pseudoataxia (FPA) and 5 normal examinees as the control were examined. Vibration of 100 Hz of 4kgw /24 cm^2 was applied for about 10 sec to M. triceps surae during standing with closed eyes. Simaltaneously electromyograms from M. triceps surae and M. tibialis anterior of both legs, and foot-forcesat the metatarsal region and the heel of both soles were recorded. Each neuromuscular disorders showed the different and characteristic VIF reaction patterns. The patients with Parkinson disease revealed the hyporeaction in amplitude as compared with the normal subjects, who had a large backward and short subsequent longitudinal body-sways during and after the application of the vibration and the latency to the onset of the reaction of about 500 mS. In SCD the hyper-reaction in amplitude was observed. The amplitude of the body-sways of the patient with FSP was within normal range, but the latency was shorter than the normal. In FPA, the VIF reaction of the non-affected side was as like as in the patients with SCD, but that of the affected side was not seen. It was suggested by Ekuland in 1972 that the VIF reaction was resulted from the illusion of the normal postural regulation system, then it seems that frontal lobe, cerebellum, pyramidal and extrapyramidal tracts all play the important role but with somewhat different manner in the postural regulation system. According to these results, the posibility of the biofeedback therapy of the motor abnormalities such as involuntary movements (tremor, chorea, etc.) and frozen or ataxic gait observed in the patients with neuromuscular disorders was briefly discussed.
日本バイオフィードバック学会の論文
1982-06-30

各種神経疾患患者閉眼立位に対する振動刺激の効果について : 運動障害を伴う神経疾患のバイオフィードバック療法の可能性を探って

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