Bracci M, Croce N, Baldassari M, Amati M, Monaco F, Santarelli L
Medicina del Lavoro, Facoltà di Medicina e Chirurgia, Università Politecnica delle Marche, Ancona.
G Ital Med Lav Ergon. 2007 Jul-Sep;29(3 Suppl):563-4.
Video display terminal (VDT) operators are required to maintain a sitting position for extended periods of time. This transverse study assessed the prevalence of lumbar musculoskeletal disorders (low back pain, LBP) in a population of VDT operators and related results to occupational factors and other interfering variables. Data were collected using questionnaires administered to 210 public employees. LBP was defined and evaluated using the Standardized Nordic Questionnaire. The prevalence of LBP was 58.4%; it correlated significantly with the female sex, spinal disorders, sleep disturbances and stress levels. There was a significant negative correlation with exercise and sports activities and with leisure time computer use. Multiple logistic regression adjusted for age and body mass index yielded an LBP odds ratio of 0.19 (C.I.95% 0.07-0.51) for sport-practicing subjects. At least one hour of exercise weekly was the cut-off for a significant reduction in LBP prevalence. The proportion of lumbar musculoskeletal symptoms was not significantly different in VDT operators and the general population. None of the occupational variables considered correlated with development of LBP. The occupational physician should recommend VDT operators to devote some leisure time to exercise.
视频显示终端（VDT）操作员需要长时间保持坐姿。这项横向研究评估了VDT操作员群体中腰椎肌肉骨骼疾病（下背痛，LBP）的患病率，并将结果与职业因素和其他干扰变量相关联。通过对210名公职人员进行问卷调查来收集数据。使用标准化北欧问卷对LBP进行定义和评估。LBP的患病率为58.4%；它与女性性别、脊柱疾病、睡眠障碍和压力水平显著相关。与运动和体育活动以及休闲时间使用电脑呈显著负相关。对年龄和体重指数进行调整后的多因素逻辑回归分析得出，进行体育锻炼的受试者患LBP的优势比为0.19（95%置信区间0.07 - 0.51）。每周至少进行一小时的运动是LBP患病率显著降低的临界值。VDT操作员和普通人群中腰椎肌肉骨骼症状的比例没有显著差异。所考虑的职业变量均与LBP的发生无关。职业医生应建议VDT操作员在休闲时间进行一些锻炼。
