Ioannou Leonidas G, Tsoutsoubi Lydia, Mantzios Konstantinos, Gkikas Georgios, Agaliotis Gerasimos, Koutedakis Yiannis, García-León David, Havenith George, Liang Jack, Arkolakis Costas, Glaser Jason, Kenny Glen P, Mekjavic Igor B, Nybo Lars, Flouris Andreas D
From the FAME Laboratory, Department of Physical Education and Sport Science, University of Thessaly, Trikala, Greece (L.G.I., L.T., K.M., G.G., G.A., Y.K., A.D.F.); Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark (L.G.I., L.N.); Department of Automatics, Biocybernetics and Robotics, Jozef Stefan Institute, Ljubljana, Slovenia (L.G.I., L.T., I.B.M.); European Commission, Joint Research Centre, Seville, Spain (D.G.-L.); Environmental Ergonomics Research Centre, Loughborough Design School, Loughborough University, Loughborough, United Kingdom (G.H.); Department of Economics, Yale University, New Haven, Connecticut (J.L., C.A.); La Isla Network, USA (J.G.); and Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada (G.P.K., A.D.F.).
J Occup Environ Med. 2025 Jun 1;67(6):393-399. doi: 10.1097/JOM.0000000000003332. Epub 2025 Feb 7.
We investigated the impact of workplace heat and cold on work time loss.
Field experiments in different industrial sectors were conducted in multiple countries across all seasons between 2016 and 2024. Hundreds of workers were video recorded, and their full shifts (n = 603) were analyzed on a second-by-second basis (n = 16,065,501 seconds). Environmental data were recorded using portable weather stations. The Workplace Environmental Labor Loss (WELL) functions were developed to describe work time loss due to workplace temperature.
The WELL functions revealed a U-shaped relationship whereby the least work time loss is observed at 18°C (64°F) and increases for every degree above or below this optimal temperature.
The WELL functions quantify the impact of workplace temperature on work time loss, extending to temperatures previously believed to be unaffected.
我们研究了工作场所的高温和低温对工作时间损失的影响。
2016年至2024年期间，在所有季节对多个国家的不同工业部门进行了实地实验。对数百名工人进行了视频记录，并对他们的整个轮班（n = 603）进行了逐秒分析（n = 16,065,501秒）。使用便携式气象站记录环境数据。开发了工作场所环境劳动损失（WELL）函数来描述由于工作场所温度导致的工作时间损失。
WELL函数显示出一种U形关系，即在18°C（64°F）时观察到的工作时间损失最少，并且在高于或低于此最佳温度的每一度都会增加。
WELL函数量化了工作场所温度对工作时间损失的影响，扩展到了以前认为不受影响的温度范围。
