高温作業現場での水分補給効果

概要

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Replacement of fluid lost due to sweating in a hot working-environment was determined by measuring the body weight of 14 workers (53.6±7.1 years old) 5 times during a working day. They were engaged in repairing and/or maintaining blast furnaces in an environment of 27.9-42.6℃ in WBGT. The amount of fluid consumption from a free intake of either green tea and tap water or green tea, tap water and glucose-electrolyte solution (Pocari, Otsuka Pharmaceutical Co., referred to as G-E solution) was compared. The body weight loss during work was 1.70±0.70kg when free intake of fluids plus G-E solution was allowed, while it was 1.60±0.65kg when G-E solution was not allowed. Fluid intake with G-E solution was 1.03±0.35l, and they could rehydrate 61%. Without the G-E solution fluid, was 0.75±0.37l (47% rehydration). Fluid intake with G-E solution was significantly (p<0.05) larger than that without it. The body weight difference between pre -ad post-work was significant (p<0.001), i.e., it was 0.26±0.52kg while drinking G-E solution and 0.52±0.53kg without it. These results suggest that restoration of body fluid after thermal dehydration takes place much faster when consuming G-E solution.
社団法人日本産業衛生学会の論文
1992-09-20