Can a new behaviorally oriented training process to improve lifting technique prevent occupationally related back injuries due to lifting?
Can a new behaviorally oriented training process to improve lifting technique prevent occupationally related back injuries due to lifting?
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DOI：
10.1097/01.brs.0000255203.96898.f2
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发表时间：
2007-02-15
期刊：
影响因子：
3
通讯作者：
Andersson, Gunnar B. J.
中科院分区：
文献类型：
--
作者：
Lavender, Steven A.;Lorenz, Eric P.;Andersson, Gunnar B. J.
研究设计。一项前瞻性随机对照试验。目的。确定新的基于行为的举重训练计划（LiftTrainer T；Ascension Technology，伯灵顿，佛蒙特州）可以在多大程度上减少需要重复举重的配送中心工作中腰部疾病的发生率。背景数据摘要。大多数研究表明，旨在训练举重技术的计划对于预防腰部疾病无效，这可能是由于其概念性而非行为性学习方法。 19 个配送中心的总共 2144 名员工被随机分为 LiftTrainer T 计划或视频对照组。在 LiftTrainer T 项目中，参与者接受了长达 5、30 分钟的单独训练，同时配备了动作捕捉传感器来量化 L5/S1 时刻。初次培训后十二个月，从公司记录中获取伤害数据。结果。生存分析（Kaplan-Meier）表明，两个训练组之间的受伤率没有差异。同样，人员流动率也没有差异。然而，那些在第一次训练结束时平均扭转力矩较低（< 30 Nm）的人的腰部疾病发生率显着低于对照组（P < 0.005）。结论。虽然整体而言，LiftTrainer T 计划并不有效，但扭转力矩低于 30 Nm 的人员受伤较少，这表明“安全”举重计划的重点已发生转变。
Study Design. A prospective randomized control trial.Objective. To determine the degree to which a new behavior-based lift training program (LiftTrainer T; Ascension Technology, Burlington, VT) could reduce the incidence of low back disorder in distribution center jobs that require repetitive lifting.Summary of Background Data. Most studies show programs aimed at training lifting techniques to be ineffective in preventing low back disorders, which may be due to their conceptual rather than behavioral learning approach.Methods. A total of 2144 employees in 19 distribution centers were randomized into either the LiftTrainer T program or a video control group. In the LiftTrainer T program, participants were individually trained in up to 5, 30-minute sessions while instrumented with motion capture sensors to quantify the L5/S1 moments. Twelve months following the initial training, injury data were obtained from company records.Results. Survival analyses (Kaplan-Meier) indicated that there was no difference in injury rates between the 2 training groups. Likewise, there was no difference in the turnover rates. However, those with a low (< 30 Nm) average twisting moment at the end of the first session experienced a significantly (P < 0.005) lower rate of low back disorder than controls.Conclusions. While overall the LiftTrainer T program was not effective, those with twisting moments below 30 Nm reported fewer injuries, suggesting a shift in focus for "safe" lifting programs.