This study evaluated the association between the prevalence of back discomfort and estimates of back load posed by nine jobs in two manufacturing facilities.
Prevalence of back discomfort experienced was estimated through self-administered questionnaires.
A total of 266 questionnaires were distributed to workers randomly selected from nine jobs in two factories.
Workers were asked to rate on a 0-5 scale the discomfort level they experienced in the back for a one-month period before and at the time of the survey.
The return rate for each job ranges from 57% to 100%. Overall, 14.5% of the survey respondents experienced some discomfort in the back.
With the assistance of a checklist, nine supervisors rated each task of the job they supervised by the magnitude of the force (low, moderate, or high) and by the duration, (less than 30% time, 30% to 50% time, and greater than 50% time) that workers typically spent in awkward back postures, such as back flexion, extension, twisting, and lateral bending.
An additional total back load estimate was provided independently by an ergonomist.
Logistic regression analysis found a positive association between the back discomfort prevalence observed in the present study and the load estimates both by the ergonomist and by task information based on back twisting.
Significant concordance was found between the ergonomist's load estimates and the supervisors'estimate of the duration of twisted back. (...)
Mots-clés Pascal : Exposition professionnelle, Médecine travail, Poste travail, Lombalgie, Activité professionnelle, Homme, Epidémiologie, Ergonomie, Mexique, Amérique Centrale, Amérique, Questionnaire, Liste contrôle, Evaluation, Prévalence, Charge travail, Douleur, Système ostéoarticulaire pathologie, Rachis pathologie, Rachialgie
Mots-clés Pascal anglais : Occupational exposure, Occupational medicine, Workplace layout, Low back pain, Professional activity, Human, Epidemiology, Ergonomics, Mexico, Central America, America, Questionnaire, Checklist, Evaluation, Prevalence, Workload, Pain, Diseases of the osteoarticular system, Spine disease, Rachialgia
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0067867
Code Inist : 002B15F. Création : 31/05/1999.