Levanon Yafa, Gefen Amit, Lerman Yehuda, Givon Uri, Ratzon Navah Z
Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.
Work. 2012;41 Suppl 1:669-75. doi: 10.3233/WOR-2012-0224-669.
Typing is associated with musculoskeletal complaints (MSCs), caused by multiple risk factors. Although a wide variety of ergonomic intervention programs were conducted to reduce risk factors and MSC's, only few of them were found evidence based. This study aimed to test the efficacy of a workplace intervention in reducing MSC's among computer workers. 66 computer workers were assigned randomly to one of three intervention programs: ergonomic intervention including biofeedback, intervention without biofeedback and control group without intervention. The efficacy was tested by advanced assessment including; pain location and severity, posture at work, upper extremity 3D kinematics, muscle activity and psychosocial status. Working hypothesis; significant score differences will be found between the study groups which underwent ergonomic intervention and the control group on the following measures: pain complaints, upper extremity kinematics, muscle activity and psychosocial status. Significant differences were found between pre and post intervention and between research groups and the control group in pain, posture and motion. The ergonomic intervention with biofeedback had no unique contribution in comparison to other interventions. In conclusion; the proposed intervention program was found efficient for reducing pain among computer workers.
打字与多种风险因素导致的肌肉骨骼疾病（MSCs）相关。尽管开展了各种各样的人体工程学干预项目以降低风险因素和肌肉骨骼疾病，但其中只有少数被发现是基于证据的。本研究旨在测试一种工作场所干预措施在减少计算机工作者肌肉骨骼疾病方面的效果。66名计算机工作者被随机分配到三个干预项目之一：包括生物反馈的人体工程学干预、无生物反馈的干预以及无干预的对照组。通过包括疼痛部位和严重程度、工作姿势、上肢三维运动学、肌肉活动和心理社会状况等在内的先进评估方法来测试效果。工作假设：在接受人体工程学干预的研究组与对照组之间，在以下指标上会发现显著的分数差异：疼痛主诉、上肢运动学、肌肉活动和心理社会状况。在干预前后以及研究组与对照组之间，在疼痛、姿势和运动方面发现了显著差异。与其他干预措施相比，带有生物反馈的人体工程学干预并没有独特的贡献。总之，所提出的干预项目被发现对减轻计算机工作者的疼痛是有效的。
