Low Back Pain Quantifying Risk Factors

产品说明：这项多中心前瞻性队列研究将：（i）确定2年内腰痛（LBP）、伴有神经系统体征（坐骨神经痛）的LBP、LBP相关损伤、损失的时间和3种工作身体暴露水平（低、中、高）的改良责任相关LBP的基线患病率和后续发病率，（ii）量化工作和个人风险因素（例如，重量、频率、水平和垂直位置、下背部力矩等），(iii)验证现有的工作分析方法（尤其是修订的NIOSH起重方程、最大可接受重量和地面力、三维静态强度生物力学模型、拟议的起重TLV和华盛顿州检查表），以及（iv）开发确定MSD风险的最终模型。来自三个不同州的10个非常不同的行业的678名工人（研究辍学者被替换）将参加这项研究，以帮助确保研究结果的普遍性。 为了最大限度地提高客观性和准确性，工作物理暴露将主要依靠测量来量化 暴露。为了最大限度地提高临床和流行病学的有效性和可靠性，所有参与者都将接受物理治疗师和合格医生的健康结果评估。这些措施将包括：基线调查表、结构化面谈和标准化体检。将每月监测工作物理暴露的变化。LBP症状，坐骨神经痛，LBP损伤和LBP严重程度措施将每月使用症状问卷进行评估，并对有症状的人进行结构化访谈/体格检查。在整个现场观察阶段，工作身体暴露和健康结果评估小组将彼此保持盲态。 多变量逻辑回归模型和生存分析将被用来探讨工作的身体危险因素和腰痛（LBP），坐骨神经痛，LBP损伤和LBP严重程度的措施之间的关系。除了量化人体工程学的风险因素，各种工作之间的相互作用，社会心理和个人的风险因素将进行探讨。该项目预计将导致改善现有的人体工程学工作评估模型的能力，这些模型对广泛的行业具有强大的预测能力。

DESCRIPTION: This multi-center prospective cohort study will: (i) Determine baseline prevalence rates and subsequent incidence rates over a 2 year period for low back pain (LBP), LBP with neurological signs (sciatica), LBP-related impairments, lost time and modified duty-related LBP for 3 levels of job physical exposures (low, medium, high), (ii) Quantify job and individual risk factors (e.g., weights, frequency, horizontal and vertical locations, low back moments, etc.), (iii) Validate existing job analysis methods (especially Revised NIOSH Lifting Equation, Maximum Acceptable Weights land Forces, 3-D Static Strength Biomechanical Model, the Proposed TLV for Lifting, and the Washington State Checklist, and (iv) Develop a final model for determining MSD risks. A cohort of 678 workers (study drop-outs replaced) from 10 very different industries with a total worker population of over 10,000 in three diverse states will ;) participate in the study to help ensure generalizability of the study results. To maximize objectivity and accuracy, job physical exposures will rely primarily on measurements to quantify exposures. To maximize clinical and epidemiological validity and reliability, all participants will have health outcomes assessments by Physical Therapists and qualified physicians. These will include: baseline questionnaires, structured interviews and standardized physical examinations. Changes in job physical exposures will be monitored monthly. LBP symptoms, sciatica, LBP impairments and LBP severity measures will be assessed monthly using a symptom questionnaire on all, and structured interviews/physical examinations on those with symptoms. Job physical exposure and health outcomes assessment teams will be blinded to each other throughout the field observation phase. Multivariate logistic regression models and survival analyses will be utilized to explore relationships between job physical risk factors and low back pain (LBP), sciatica, LBP impairments and LBP severity measures. In addition to quantifying ergonomic risk factors, interactions between various jobs, psychosocial and individual risk factors will be explored. This project is expected to result in the ability to improve the existing ergonomic job evaluation models that have robust predictive capabilities for a broad range of industries.