Rehabilitation and Performance Program, University of São Paulo, Ribeirão Preto, Brazil.
Paulista University, Ribeirão Preto, Brazil.
BMC Musculoskelet Disord. 2022 Feb 5;23(1):119. doi: 10.1186/s12891-022-05059-5.
Work-related musculoskeletal disorders (WRMDs) are often caused by inadequate use of the musculoskeletal system during work. Evidence suggests that multimodal intervention through exercises, massage, education, and ergonomic guidelines reduces pain and symptoms in the neck and upper extremities and help to prevent musculoskeletal disorders. The purpose of this study will be to assess the additive effectiveness of a specific and individualized workplace strengthening exercise program to an ergonomic guidance in reducing fatigue, pain and discomfort in the upper extremities and neck perceived by workers.
This trial was designed according to the Consolidated Standards of Reporting Trials - CONSORT guidelines. Participants will be employees of a tertiary hospital, with any complaints of pain or discomfort in the upper extremities during the past 12 months, without clinical musculoskeletal diagnosis. 166 participants will be randomized into parallels groups as control and workplace exercises. The primary outcomes will be Numerical Pain Scale, isokinetic muscle strength of abduction and isometric handgrip strength. Secondary outcomes on discomfort, fatigue, work capacity and dysfunction will be assessed by QuickDASH, Patient Specific Functional Scale, Neck Disability Index, Need for recovery, Work Ability Index self-report questionnaires and FIT-HANSA performance test. The Ergonomic Work Analysis will be done by Quick Expose Check, RULA, REBA, RARME, ROSA and HARM risk assessment ergonomic tools. We will analyze the difference between baseline and 12 weeks of intervention by T test of independent samples (95% confidence interval, p < 0.05). Clinical significance will be analyzed by the minimum clinically important difference and effect size by Cohen index. The association between the variables will be analyzed by construct validity with the hypothesis of correlations between pain and muscle strength, strength and functionality and strength and fatigue.
Although studies have shown promise outcomes for workplace exercises as an available therapeutic resource used to minimize complaints of pain and discomfort related to work, the results of this study aim to bring evidence about the benefit of a specific resistance exercise as an effective modality to facilitate mechanisms of neuromuscular adaptations, with gradual and posterior hypertrophy in the later phases.
(NCT04047056, https://clinicaltrials.gov/ct2/show/NCT04047056?term=NCT04047056&draw=2&rank=1 ) on Dec 03, 2020.
工作相关肌肉骨骼疾病（WRMDs）通常是由于在工作中肌肉骨骼系统使用不当引起的。有证据表明，通过锻炼、按摩、教育和人体工程学指南的多模式干预，可以减轻颈部和上肢的疼痛和症状，并有助于预防肌肉骨骼疾病。本研究的目的是评估特定的、个体化的工作场所强化锻炼计划对预防肌肉骨骼疾病的附加效果，该计划通过人体工程学指导减少工人上肢和颈部的疲劳、疼痛和不适。
本试验按照《CONSORT 报告标准》进行设计。参与者将是一家三级医院的员工，在过去 12 个月内有上肢疼痛或不适的任何抱怨，但没有临床肌肉骨骼诊断。166 名参与者将随机分为对照组和工作场所锻炼组。主要结局指标为数字疼痛量表、外展等速肌力和握力。通过 QuickDASH、患者特定功能量表、颈部残疾指数、恢复需求、工作能力指数自我报告问卷和 FIT-HANSA 性能测试评估不适、疲劳、工作能力和功能障碍的次要结局。通过 Quick Expose Check、RULA、REBA、RARME、ROSA 和 HARM 风险评估人体工程学工具进行人体工程学工作分析。我们将通过独立样本 T 检验（95%置信区间，p<0.05）分析干预前 12 周的差异。通过最小临床重要差异和 Cohen 指数的效应大小分析临床意义。通过假设疼痛与肌肉力量、力量与功能以及力量与疲劳之间存在相关性，来分析变量之间的关系。
尽管研究表明，工作场所锻炼作为一种可用的治疗资源，可用于最大限度地减少与工作相关的疼痛和不适的投诉，具有很大的前景，但本研究的结果旨在提供关于特定阻力锻炼作为一种有效促进神经肌肉适应机制的方式的益处的证据，在后期阶段逐渐出现后肥大。
（NCT04047056，https://clinicaltrials.gov/ct2/show/NCT04047056?term=NCT04047056&draw=2&rank=1）于 2020 年 12 月 3 日注册。
