School of Public Health, San Antonio Regional Campus, University of Texas Health Science Center, Houston, Texas.
Am J Ind Med. 2014 Mar;57(3):370-9. doi: 10.1002/ajim.22286. Epub 2013 Dec 16.
Dairy production in the US is moving towards large-herd milking operations resulting in an increase in task specialization and work demands.
A modified version of the Standardized Nordic Questionnaire was administered to assess MSS prevalence among 452 US large-herd parlor workers. Worker demographics and MSS prevalences were assessed, and differences based on parlor configuration (i.e., herringbone, parallel, rotary) were computed.
Three-fourths (76.4%) of parlor workers reported work-related MSS in at least one body part. Highest prevalences were reported in the upper extremity (55%). Herringbone workers reported a higher prevalence of MSS in the wrist/hand, and rotary workers reported higher prevalences of MSS in the neck, upper back, and shoulders.
Our findings draw attention to higher work-related MSS in the upper extremity among dairy parlor workers. As the trend toward larger herd sizes on US dairy farms continues, the need for further health and safety research will increase.
美国的乳制品生产正在向大型奶牛场养殖作业发展，这导致了工作分工的专业化和工作需求的增加。
对 452 名美国大型奶牛场挤奶工人使用改良版的北欧标准问卷来评估 MSS 的流行情况。评估工人的人口统计学特征和 MSS 的流行率，并根据牛舍配置（如鱼骨式、平行式、旋转式）计算差异。
四分之三（76.4%）的挤奶工人报告在至少一个身体部位存在与工作相关的 MSS。上肢（55%）的发病率最高。鱼骨式工人报告手腕/手部 MSS 的发病率更高，而旋转式工人报告颈部、上背部和肩部 MSS 的发病率更高。
我们的研究结果表明，奶牛场挤奶工人上肢与工作相关的 MSS 发病率更高。随着美国奶牛场向更大规模的养殖规模发展，对进一步的健康和安全研究的需求将会增加。
