人工的気温低下によるさく岩作業者の白指誘発

概要

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Rock-drill workers with or without subjective complaint on Raynaud's Phenomenon were tested if white finger attacks would be provoked when the workers were exposed to artificially lowered ambient temperature in summer. Six out of 48 subjects showed the attack, when the room temperatures were below 15℃ and the skin temperatures of the middle finger were below 21℃. But, the room temperature below 15℃ was not enough in provoking attacks in all subjects with subjective complaint on Raynaud's Phenomenon. By these results, the idea of the critical temperature which is needed as the trigger of attack holds true in summer. Among the subject without subjective complaint on Raynaud's Phenomenon there was a man who got the attack. Generally, the ratio of the decrease of finger skin temperature to that of room temperature was inversely proportional to the level of the room temperature at the start of cooling. This relationship was not modified by the subjective complain on Raynaud's Phenomenon, years of use of rock-drills or age.
社団法人日本産業衛生学会の論文
1971-03-20