体表循環モニターシステムの開発と応用 : 第2報 診断的応用
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概要
- 論文の詳細を見る
Using the system which I developed for the monitoring of body surface circulation, the peripheral circulatory function of workers who used vibrating tools was studied at rest, and then the peripheral circulatory movements during handgrip and local vibration exposure were examined. Workers using vibrating tools were divided into three groups; group A without any symptoms, group B with numbness and/or pain but without Raynauds phenomenon, and group C with Raynauds phenomenon.The results obtained were as follow;1) In fifty-six workers using vibrating tools, the skin temperature showed no significant differences among the three groups but the finger blood flow of group C was significantly less than that of group A (p<0.01).2) In a short-term handgrip test using a hand dynamometer with a constant strength, the skin temperature showed no significant change. The finger blood flow of group A and group B significantly decreased as compared with the value at rest but that of group C showed no significant change.3) In a five-minute handgrip test using a hand dynamometer with a constant strength, the finger blood flow of six workers with no symptoms significantly decreased from one minute after the start of the test as compared with the value at rest and maintained its significantly low level. Thereafter, the skin temperature significantly fell from two minutes after the start of the handgrip test and continued to fall during handgrip. After the end of handgrip, the finger blood flow returned to the level at rest and the skin temperature significantly rose as compared with the value at rest.4) In the exposure to local vibration (60Hz, 50m/sec2) of eighteen workers using vibrating tools, the finger blood flow of group A significantly increased after the start of exposure but group C did not show any increase. The finger blood flow of group B showed a slight increase but it was not significant.It was concluded that the newly developed system for monitoring the body surface circulation was useful not only for diagnosis of peripheral circulatory disorders but also in the elucidation of its pathogenesis.
- 日本衛生学会の論文
著者
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