Development and validation of a cumulative exposure shoulder risk assessment tool based on fatigue failure theory
Development and validation of a cumulative exposure shoulder risk assessment tool based on fatigue failure theory
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DOI：
10.1080/00140139.2020.1811399
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发表时间：
2020-08-27
期刊：
影响因子：
2.4
通讯作者：
Gallagher, Sean
中科院分区：
文献类型：
--
作者：
Bani Hani, Dania;Rong, Huangfu;Gallagher, Sean
目的提出一种基于疲劳失效理论的肩高强度作业风险评估新方法。方法该工具基于肩矩和加载周期，使用来自体外肌腱疲劳破坏试验的S-N曲线估计累积损伤（CD）。如果执行多个肩部任务，则对每个任务的CD进行求和。在验证中，对293名工人进行了五项单独的肩部结果评估。采用Logistic回归对五种肩部结果进行评估，包括年龄、性别、体重指数（BMI）和厂区等协变量。结果：原始和调整后的logistic回归结果均显示，对数CD测量与所有五种肩部预后之间存在很强的剂量-反应相关性（连续or范围为2.12至5.20）。结论肩部工具的CD测量显示了与多种健康结果的剂量-反应关系。这进一步证明MSDs可能是疲劳失效过程的结果。本研究提出了一种新的，易于使用的风险评估工具，用于涉及肩部压力的职业任务。该工具基于疲劳失效理论。该工具已根据现有的流行病学研究进行了测试，并证明与多重肩部预后有很强的关系。
Objective To present a new risk assessment tool for shoulder intensive occupational tasks based on fatigue failure theory. Methods The tool estimates cumulative damage (CD) based on shoulder moments and loading cycles using an S-N curve derived from in vitro tendon fatigue failure tests. If multiple shoulder tasks are performed, the CD for each is summed. In the validation, 293 workers were evaluated for five separate shoulder outcomes. Logistic regression was used to assess the log CD against five shoulder outcomes adjusted for covariates including age, sex, body mass index (BMI), and plant site. Results Both crude and adjusted logistic regression results demonstrated strong dose-response associations between the log CD measure and all five shoulder outcomes (continuous ORs ranged from 2.12 to 5.20). Conclusions The CD measure of The Shoulder Tool demonstrated dose-response relationships with multiple health outcomes. This provides further support that MSDs may be the result of a fatigue failure process. Practitioner summary This study presents a new, easy-to-use risk assessment tool for occupational tasks involving stressful shoulder exertions. The tool is based on fatigue failure theory. The tool was tested against an existing epidemiology study and demonstrated strong relationships to multiple shoulder outcomes.