A field intervention study was implemented to evaluate the effects of individual (physical exercise programme and worker ergonomics training) and organisational changes (optimising work–rest schedule and revised task procedure) on musculoskeletal outcomes and their exposure risks among milking workers in a dairy plant. A questionnaire survey (including the Cornell Musculoskeletal Discomfort Questionnaire [CMDQ]) and direct observations of working postures by using the Quick Exposure Check (QEC) method were used at baseline and 12-month follow-up. Shoulder, lower back and neck discomfort were found to be the most common problems. The results showed significant improvements in the frequency (neck, shoulder, lower back, forearm and knee symptoms), severity (shoulder, lower back and knee symptoms) and interference with work (particularly due to lower back symptoms) as well as in the exposure risks to musculoskeletal problems (using the QEC method) after the intervention. The findings support the effectiveness of implemented multiple component intervention for improving musculoskeletal health and exposure risks in the studied occupational group.

实施了一项现场干预研究，以评估个体（体育锻炼计划和工人人体工程学培训）和组织变化（优化工作-休息时间表和修订的任务程序）对奶厂挤奶工人的肌肉骨骼结局及其暴露风险的影响。在基线和12个月的随访中，使用了问卷调查（包括康奈尔肌肉骨骼不适问卷[CMDQ]），并使用快速暴露检查（QEC）方法直接观察了工作姿势。肩膀，下背部和颈部不适是最常见的问题。结果显示，频率（颈部，肩膀，下背部，前臂和膝盖症状），严重程度（肩膀，下背部和膝盖症状）和干预工作（特别是由于下背部症状）以及干预后出现肌肉骨骼问题的暴露风险（使用QEC方法）。研究结果支持所实施的多成分干预措施对改善所研究职业人群的肌肉骨骼健康和暴露风险的有效性。