Objectives

To investigate the efficacy of active break and postural shift interventions aimed to reduce sitting discomfort on recovery duration and recurrence of neck and low back pain among high-risk office workers.

Methods

A 3-arm cluster-randomized controlled trial with 12-month follow-up was conducted in 193 healthy but high-risk office workers. Participants in the intervention groups received custom-designed apparatus to facilitate either active breaks or postural shifts to reduce sitting discomfort at work. Participants in a control group received a placebo seat pad. Incidence of neck and low back pain with pain intensity and disability level was recorded monthly. Main outcome measures were recovery time and recurrent rate of neck and low back pain. Analyses were performed using log rank test and Cox proportional hazard models.

Results

Median time to recovery in those receiving active break and postural shift interventions (1 month) was significantly shorter than those in the control group (2 months). Neck and low back pain recurrent rates for the active break, postural shift, and control groups were 21%, 18%, and 44%, respectively. Hazard rate (HR) ratios after adjusting for biopsychosocial factors indicated a protective effect of active break and postural shift interventions for neck and low back pain recurrence (HR_adj 0.22, 95% CI 0.06–0.83 for active breaks and HR_adj 0.35, 95% CI 0.16–0.77 for postural shift).

Conclusion

Active break and postural shift interventions shortened recovery time and reduced recurrence of neck and low back pain among high-risk office workers.

中文翻译：

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主动休息和姿势转变干预对上班族颈部和腰痛恢复和复发的影响：一项 3 臂整群随机对照试验

目标

旨在调查旨在减少高危办公室工作人员在恢复期间的坐姿不适以及颈部和腰痛复发的主动休息和姿势转变干预措施的有效性。

方法

一项为期 12 个月的 3 臂整群随机对照试验在 193 名健康但高风险的上班族中进行。干预组的参与者接受了定制设计的装置，以促进主动休息或改变姿势，以减少工作中的坐姿不适。对照组的参与者接受了安慰剂座垫。每月记录颈部和腰痛的发生率以及疼痛强度和残疾程度。主要结局指标是颈部和腰痛的恢复时间和复发率。使用对数秩检验和 Cox 比例风险模型进行分析。

结果

接受主动休息和姿势转变干预的患者的中位恢复时间（1 个月）明显短于对照组（2 个月）。主动休息组、体位转换组和对照组的颈部和腰痛复发率分别为 21%、18% 和 44%。危险率（HR）的比率调整生物心理因素后指示活性断裂和用于颈部和腰痛复发（HR姿势移位干预的保护作用_形容词0.22，95％CI 0.06-0.83用于活性场所及HR _ADJ 0.35，95％姿势转换的 CI 0.16–0.77）。

结论

主动休息和姿势转变干预缩短了高危办公室工作人员的恢复时间并减少了颈部和腰痛的复发。