Environmental Health Sciences, University of California Berkeley, Berkeley, CA, USA; Department of Medicine, University of California at San Francisco, San Francisco, CA, USA.
Department of Physical Therapy, Samuel Merritt University, Oakland, CA, USA.
Appl Ergon. 2019 Nov;81:102880. doi: 10.1016/j.apergo.2019.102880. Epub 2019 Jun 22.
The purpose of this study was to quantify biomechanical and cardiovascular exposure while making beds with and without interventions (mattress lift tool and fitted sheet). Sixteen female hotel room cleaners participated in this multifactorial (tool and sheet) laboratory study of crossover design. Exertion in the upper extremity (<2) and back (<3) was consistently lower when using the tool and fitted sheet (p < 0.05). The average number of lifts per bed was reduced by 48% with an 18 s increase in cycle time per bed. Peak forearm flexor activity was significantly lower when using a tool(p < 0.05). Spinal lateral plane range of motion (p < 0.02) and maximum twisting velocity (p < 0.03) were lowest using the tool and fitted sheet together. Interventions such as a mattress lift tool used with a fitted sheet reduced the number of mattress lifts and lowered perceived exertion among hotel room cleaners while making beds.
本研究的目的是量化使用干预措施（床垫提升工具和配套床单）和不使用干预措施（床垫提升工具和配套床单）铺床时的生物力学和心血管暴露情况。本多因素（工具和床单）交叉设计实验室研究纳入了 16 名女性酒店客房清洁员。使用工具和配套床单时，上肢（<2）和背部（<3）的用力明显较低（p<0.05）。使用工具后，每张床的提升次数减少了 48%，每张床的循环时间增加了 18 秒。使用工具时，前臂屈肌活动的峰值明显较低（p<0.05）。同时使用工具和配套床单时，脊柱侧平面活动范围（p<0.02）和最大扭转速度（p<0.03）最低。在铺床时，使用床垫提升工具和配套床单等干预措施可以减少床垫提升次数，并降低酒店客房清洁员的感知用力。
