A new study investigating effect of an oral rehydration solution (ORS) on fatigue in workers engaged in manual work during the summer suggest that the intake of ORS during outdoor work in a hot environment would be effective for preventing industrial accidents and heat stroke. The study investigated 153 workers engaged in loading cargo onto aircraft at Tokyo International Airport. The subjects were randomly divided into two groups: with one group restricted to ORS intake and the other group having free-choice of their favorite drink (FAD). The subjects were asked about the amount of beverage that they consumed and the type of FAD that they chose on the days of the survey. The effects of the ORS and the FAD were compared using a visual analogue scale (VAS) to determine the degree of fatigue experienced immediately after completing work. The most commonly chosen types of FAD were tea and coffee. The fatigue VAS was significantly lower on the ORS intake days than on the FAD intake days. The results of this study suggest that the intake of ORS during outdoor work in a hot environment would be effective for preventing industrial accidents and heat stroke. Therefore, It is important to select an appropriate drink to ensure adequate intake of water and electrolytes.
Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan. firstname.lastname@example.org
Full study, please see http://www.ncbi.nlm.nih.gov/pubmed/20551583