Fernández-D'Pool Janice, Vélez Fanny, Brito Angel, D'Pool César
Instituto de Medicina del Trabajo e Higiene Industrial, Maracaibo, Venezuela.
Invest Clin. 2012 Jun;53(2):125-37.
Musculoskeletal symptoms (MSDs) in bus drivers have been associated to the inadequate conditions of the work station. The occurrence of MES was determined in the total population of bus drivers of a public university (N = 35), and these were related with the work station, the posture static load, age, BMI, worked days and the number of years in the position. In this study, the age range was between 27 and 56 years. The standardize Nordic Musculoskeletal Questionnaire for the determination of the MSDs, the method of the Regie National Des Usines Renault to measure the static postural load and a questionnaire to collect information of the bus working conditions were applied. The mean (X +/- SD) age was 39 +/- 1.94 years and the body mass index (BMI) was 31 +/- 1.95 Kg/m2. The MSDs were associated significantly to the BMI (rs = 0.895 and p < 0.05). There was a high incidence of MSDs (94%) with more occurrences in neck (69%), lower back (60%), superior back (57%) and knees (43%). Pain of strong intensity, located in the lower back and knees, was the main symptom. These findings can be related with the risks at the work station, such as absence of head support, lumbar support, non sliding seat and inadequate conditions of the labor environment: vibration and noise. There was neither association nor correlation of MSDs and the postural static load, or with the others variables in study. The results suggest that inadequate conditions of the work stations as well as the BMI, dominated the occurrence of MSDs.
公交车司机的肌肉骨骼症状(MSD)与工作场所条件不佳有关。对一所公立大学的全体公交车司机(N = 35)进行了MSD发生率的测定,并将其与工作场所、静态姿势负荷、年龄、体重指数(BMI)、工作日数以及担任该职位的年限相关联。在本研究中,年龄范围为27至56岁。应用标准化的北欧肌肉骨骼问卷来确定MSD,采用雷诺汽车公司的方法测量静态姿势负荷,并使用一份问卷收集公交车工作条件的信息。平均(X +/- SD)年龄为39 +/- 1.94岁,体重指数(BMI)为31 +/- 1.95 Kg/m2。MSD与BMI显著相关(rs = 0.895,p < 0.05)。MSD的发生率很高(94%),其中颈部(69%)、下背部(60%)、上背部(57%)和膝盖(43%)的发生率更高。下背部和膝盖处的强烈疼痛是主要症状。这些发现可能与工作场所的风险有关,如缺乏头部支撑、腰部支撑、座椅滑动以及劳动环境条件不佳:振动和噪音。MSD与静态姿势负荷或研究中的其他变量既无关联也无相关性。结果表明,工作场所条件不佳以及BMI主导了MSD的发生。