変性筋に対する電気療法および光線療法の基礎的問題について (理学療法(シンポジウム))
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概要
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I. Triangular pulses of about 500-1500 milliseconds rise-time were found to be effective for selective stimulation of denervated muscle.When deprived of its nerve supply, muscle becomes less sensitive to brief faradic stimuli and more sensitive to long galvanic stimuli. However, the increased sensitivity to galvanism brought about by denervation is not great enough to prevent the possibility of unwanted stimulation of sensory nerves and normally innervated antagonist muscles.Selectivity of the stimulus can be improved, and the incidence of unwanted stimulation reduced, by making use of the property of accommodation. If the stimulating current is turned on gradually instead of abruptly, nerve or muscle accommodate to the current; that is to say, the threshold rised and a stronger current is required for stimulation to be effective. Nerve, muscle and denervated muscle all have different minimum rate of current rise which is barely fast enough to catch up with the threshold. Therefor it is apparent that selective excitation of denervated muscle can be achieved by a wide of triangular pulses, having rise-time of 500-1500 msec.II. The quartz mercury vapour lamp (QML) emits a considerable proportion of its energy in the wave band in the region between 2800 and 2500Å which the sun spectrum does not contain, while fluorescent sun lamp (FSL) emits energy in the region between 2800 and 3800Å having a peak at about 3100Å.FSL has beneficial effects on the growth of mice kept in darkness, while QML affects rather harmfully.FSL and Black Light Lamp (which emits energy in the region between 3100 and 3800Å) raise the power of resistance of mice to cold.QML has harmful effects on the histological changes of mice spleen damaged by X-ray irradiation, while FSL and infrared ray show curative effects on them.
- 一般社団法人 日本温泉気候物理医学会の論文