Masters and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, São Paulo, SP, Brazil.
Department of Physical Therapy, Universidade Cidade de São Paulo, São Paulo, SP, Brazil.
Work. 2022;72(1):201-210. doi: 10.3233/WOR-205190.
An analysis of workers' exposure to biomechanical risk factors in the workplace with a high methodological quality allows for stronger evidence of the relationship between risk factors and musculoskeletal disorders.
To evaluate the measurement properties of non-explicit observational methods.
Psychometric study design that included 50 workers in an analysis of occupational tasks (n = 50 video tasks) using a non-explicit observational method, the Rapid Entire Body Assessment (REBA) method, and a workers' self-report on their perception of their biomechanical occupational exposure. The reliability was tested by a non-explicit method and the REBA method. The validity of the non-explicit method was tested using the REBA method and the workers' self-report, according to COSMIN guidelines.
The intra- and inter-evaluator reliability of the non-explicit observational method ranged from moderate to strong (ICC2.1 = 0.45 to 0.87), and the agreement was acceptable (SEM = 0.60 to 2.79), expect for neck region. The REBA method showed intra-evaluator reliability to be moderate to excellent (ICC2.1 = 0.50 to 1.00), inter-evaluator reliability to be poor to strong (ICC2.1 = -0.17 to 0.83), and intra- and inter-evaluator agreement to be poor to moderate (SEM = 0.00 to 0.74). The concurrent validity between the non-explicit and REBA methods showed a strong positive correlation.
The non-explicit observational method of biomechanical exposure analysis presented reproducible and valid measurement properties. Methods that present better measurement properties provide professionals with a better basis for analysis and assist in decision-making to reduce or eliminate risk exposure.
采用高质量方法分析工人在工作场所接触生物力学风险因素，可以为风险因素与肌肉骨骼疾病之间的关系提供更强有力的证据。
评估非显性观察方法的测量特性。
采用心理测量学研究设计，对 50 名工人的职业任务（n=50 个视频任务）进行分析，使用非显性观察方法（Rapid Entire Body Assessment，REBA 方法）和工人对其生物力学职业暴露感知的自我报告。使用非显性方法和 REBA 方法对可靠性进行了测试。根据 COSMIN 指南，使用 REBA 方法和工人自我报告对非显性方法的有效性进行了测试。
非显性观察方法的内部和外部评估者可靠性从中等到很强（ICC2.1=0.45-0.87），且一致性可接受（SEM=0.60-2.79），颈部区域除外。REBA 方法的内部评估者可靠性为中等至极好（ICC2.1=0.50-1.00），外部评估者可靠性为差至强（ICC2.1=-0.17-0.83），内部和外部评估者的一致性为差至中等（SEM=0.00-0.74）。非显性与 REBA 方法之间的同时有效性显示出强正相关。
生物力学暴露分析的非显性观察方法具有可再现和有效的测量特性。具有更好测量特性的方法为专业人员提供了更好的分析基础，并有助于做出决策以减少或消除风险暴露。
