3E1-04 ロボット型歩行訓練機を用いた受動歩行の効果 : 神経系、呼吸循環系に対する効果(OS 身体機能・活動力の維持と向上)

概要

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The aim of this study is to clarify effects of passive lower limb movements on the neuromuscular and cardiovascular systems of both healthy and spinal cord injured subjects. A robotic gait trainer was used to make a passive stepping for the healthy subjects. Changes in excitability of the corticospinal tract were tested with transcranial magnetic stimulation (TMS) during the passive stepping. The result demonstrated that the corticospinal excitability of the ankle flexor was dramatically increased, indicating that the somatosensory inputs associated with the passive stepping facilitated the monosynaptic neural pathway connecting the motor cortex to spinal motoneurons. For the SCI subjects another device was used to have a passive lower limb swing motion with the knee extended, and to measure cardiovascular responses to the passive motion. The result showed that the mean blood pressure increased significantly compared to that while sitting. The greater increase of oxygen uptake was observed for the subjects who demonstrated EMG activities during the passive motion as compared to the subjects with no EMG activities.
社団法人日本機械学会の論文
2006-09-10