Department of Occupational and Public Health Sciences, University of Gävle, Centre for Centre for Musculoskeletal Research, Kungsbäcksvägen 47, Gävle 801 76, Sweden.
Unit of Intervention and Implementation Research for worker health, Institute of Environmental Medicine, Karolinska Institutet, Solnavägen 1, Stockholm 171 77, Sweden.
Ann Work Expo Health. 2017 Nov 10;61(9):1145-1153. doi: 10.1093/annweh/wxx073.
This study of flight baggage handlers aimed at examining the extent to which shoulder pain developed during single work shifts, and whether a possible development was associated with biomechanical exposures and psychosocial factors during the same shift.
Data were collected during, in total, 82 work shifts in 44 workers. Right and left shoulder pain intensity was rated just before and just after the shift (VAS scale 0-100 mm). Objective data on 'time in extreme' and 'time in neutral' upper arm postures were obtained for the full shift using accelerometers, and the baggage handlers registered the number of 'aircrafts handled' in a diary. During half of the shift, workers were recorded on video for subsequent task analysis of baggage handling. 'Influence' at work and 'support' from colleagues were measured by use of Copenhagen Psychosocial Questionnaire (COPSOQ). Associations between exposures and the increase in pain intensity during the shift ('daily pain') were analysed for the right and left shoulder separately using Generalized Estimating Equations (GEE).
'Daily pain' was observed in approximately one third of all shifts. It was significantly associated with the number of 'aircrafts handled' for both the right and left shoulder. In multivariate models including both biomechanical exposures and the psychosocial factors 'influence' at work and 'support' from colleagues, 'aircrafts handled' was still significantly associated with 'daily pain' in both shoulders, and so was 'influence' and 'support', however in opposite directions.
'Daily pain' was, in general, associated with biomechanical exposures during the same shift and with general 'influence' and 'support' in the job. In an effort to reduce pain among flight baggage handlers, it may therefore be justified to consider a reduction of biomechanical exposures during handling of aircrafts, combined with due attention to psychosocial factors at work.
本研究旨在调查行李搬运工在单次轮班期间肩部疼痛的发展程度，以及这种发展是否与同一班次期间的生物力学暴露和心理社会因素有关。
本研究共收集了 44 名工人 82 个班次的数据。在轮班前和轮班后（VAS 量表 0-100mm）对右肩和左肩的疼痛强度进行评分。使用加速度计获得整个班次中“极端”和“中立”上臂姿势的“时间”的客观数据，并在日记中记录“飞机处理”的数量。在轮班的一半时间里，对工人进行录像记录，以便随后对行李搬运工作进行任务分析。使用哥本哈根心理社会问卷（COPSOQ）测量工作中的“影响”和同事的“支持”。使用广义估计方程（GEE）分别分析右肩和左肩的暴露与轮班期间疼痛强度增加（“每日疼痛”）之间的关系。
约三分之一的班次出现了“每日疼痛”。它与右肩和左肩的“飞机处理”数量显著相关。在包括生物力学暴露以及心理社会因素“影响”和同事支持的多变量模型中，“飞机处理”数量仍与双肩的“每日疼痛”显著相关，而“影响”和“支持”则相反。
总体而言，“每日疼痛”与同一班次期间的生物力学暴露以及工作中的一般“影响”和“支持”有关。因此，为了减少行李搬运工的疼痛，可以考虑在处理飞机时减少生物力学暴露，同时适当关注工作中的心理社会因素。
