Department of Biological Sciences, University of California, Irvine, Irvine, CA, USA.
Department of Community Medicine and Pilgrims Health Care, College of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia; Department of Medicine, University of California, San Francisco, San Francisco, CA, USA.
Appl Ergon. 2023 Jan;106:103886. doi: 10.1016/j.apergo.2022.103886. Epub 2022 Sep 23.
Hotel room cleaners are a vulnerable population at risk for cardiovascular disease. To evaluate their workload heart rate (HR), % heart rate reserve (%HRR), blood pressure (BP), metabolic equivalent (MET), and energy expenditure (EE) were measured over two workdays and two off-workdays. The mean age was 45.5 (SD 8.2) years with a mean 10.4 (SD 7.8) years of work experience. Mean average and peak HR, %HRR, MET, and EE were significantly higher during a workday than an off-workday for the entire work shift, first and last hour of work. Mean average HR and %HRR saw the largest increase between the lunch and post-lunch interim. One-fourth of subjects exceeded the recommended 30% HRR threshold for 8-hour shifts. Some workers experienced a substantial increase in HR and DBP over a workday indicating physiologic fatigue and thus may be at increased risk for cardiovascular disease and premature death due to excessive physical work demands.
酒店客房清洁员是易患心血管疾病的弱势群体。为评估其工作负荷，我们在两个工作日和两个休息日期间测量了心率（HR）、心率储备百分比（%HRR）、血压（BP）、代谢当量（MET）和能量消耗（EE）。平均年龄为 45.5（SD 8.2）岁，平均工作经验为 10.4（SD 7.8）年。整个工作班次、第一小时和最后一小时的平均和峰值 HR、%HRR、MET 和 EE 在工作日均显著高于休息日。平均 HR 和 %HRR 在午餐和午饭后的间隔时间内增加最多。四分之一的研究对象在 8 小时轮班期间超过了推荐的 30%HRR 阈值。一些工人在工作日的 HR 和 DBP 显著升高，表明生理疲劳，因此由于过度的体力工作需求，他们可能面临更高的心血管疾病和过早死亡风险。
