Investigation of heat strain and the validity of thermal standard about older worker

老年工人热应变及热标准有效性调查

• 批准号: 23590767
• 负责人: UENO Satoru
• 金额: $ 3.41万
• 依托单位: National Institute of Occupational Safety and Health, Japan
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23590767/
• 关键词: 暑熱負担; 代謝率; 心拍数; 脱水; 高齢者; 熱中症; 暑熱基準; 認知テスト

Field study about construction workers in summer showed that heat stress of the working environment was highest in the first half of afternoon work and that heart rate, water loss, deep body temperature of workers were high. The average water deficit per body weight was 1.2% at the end of work shift. About half of the workers were over the standards of ACGIH-TLV. The water intake was about 50% of the water deficit, which could cause dehydration during work. To alleviate high heat strain during work, the data showed that it was important to take enough food, beverage and rest in lunch.A precise estimation of metabolic rate of outdoor workers in summer is necessary to apply the heat stress standards, such as ISO7243. By subjective study, we developed precise metabolic rate prediction equation of younger and older men by using heart rate reserve or heart rate net in addition to body weight, body fat percentage and ambient temperature.

对夏季建筑工人的现场调查显示，下午工作的前半段工作环境热应激最高，工人心率、失水量、深部体温较高。轮班结束时，单位体重的平均缺水率为 1.2%。大约一半的工人超过了 ACGIH-TLV 标准。饮水量约占缺水量的50%，工作时可能会导致脱水。数据显示，为了缓解工作期间的高热应激，午餐时保证充足的食物、饮料和休息非常重要。准确估算夏季户外工作者的代谢率对于应用ISO7243等热应激标准是必要的。通过主观研究，除了体重、体脂百分比和环境温度之外，我们还利用心率储备或心率净值，建立了年轻和老年男性的精确代谢率预测方程。

项目成果

温度の影響を考慮した代謝率推定

考虑温度影响的代谢率估计

• 发表时间: 2014
• 作者: 上野哲;田井鉄男
• 通讯作者: 田井鉄男

夏季の林業従事者の下草刈り作業における暑熱負担の検討(2)～深部体温、尿成分、体重減少量による解析

林业工人夏季灌丛割草作业热负荷检查（二）——基于核心体温、尿液成分、体重减轻的分析

• 发表时间: 2011
• 作者: 上野哲;岡龍雄;澤田晋一
• 通讯作者: 澤田晋一

Metabolic Rate Prediction in Young and Old Men by Heart Rate, Ambient Temperature, Weight and Body Fat Percentage

• DOI: 10.1539/joh.14-0063-br
• 发表时间: 2014-11
• 期刊: Journal of Occupational Health
• 影响因子: 3
• 作者: S. Ueno;Koichi Ikeda;Tetsuo Tai

夏季の林業従事者の下草刈り作業における暑熱負担の検討(1)～心拍数を用いた解析

林业工人夏季林下割草作业热负荷检查（一）——心率分析

• 发表时间: 2011
• 作者: 岡龍雄;上野哲;澤田晋一
• 通讯作者: 澤田晋一

Heat strain and hydration conditions of Japanese construction workers during work in summer.

日本建筑工人夏季工作时的热应变和水分状况。

• 发表时间: 2012
• 作者: Satoru Ueno;Shin-ichi Sawada;Tatsuo Oka;Sachiko Yamauchi;Yoko Sakakibara;Naomi Hisanaga
• 通讯作者: Naomi Hisanaga