Title
Flexion and rotation of the trunk and lifting at work are risk factors for low back pain: Results of a prospective cohort study
Author
Hoogendoorn, W.E.
Bongers, P.M.
de Vet, H.C.W.
Douwes, M.
Koes, B.W.
Miedema, M.C.
Ariëns, G.A.M.
Bouter, L.M.
Publication year
2000
Abstract
Study Design: A 3-year prospective cohort study among workers of 34 companies in the Netherlands. Objectives: To investigate the relation between flexion and rotation of the trunk and lifting at work and the occurrence of low back pain. Summary of Background Data: Previous studies on work-related physical risk factors for low back pain either lacked quantification of the physical load or did not take confounding by individual and psychosocial factors into account. Methods: The study population consisted of 861 workers with no low back pain at baseline and complete data on the occurrence of low back pain during the 3-year follow-up period. Physical load at work was assessed by means of analyses of video-recordings. Information on other risk factors and the occurrence of low back pain was obtained by means of self-administered questionnaires. Results: An increased risk of low back pain was observed for workers who worked with the trunk in a minimum of 60°of flexion for more than 5% of the working time (RR 1.5, 95% Cl 1.0-2.1), for workers who worked with the trunk in a minimum of 30°of rotation for more than 10% of the working time (RR 1.3, 95% Cl 0.9-1.9), and for workers who lifted a load of at least 25 kg more than 15 times per working day (RR 1.6, 95% Cl 1.1-2.3). Conclusions. Flexion and rotation of the trunk and lifting at work are moderate risk factors for low back pain, especially at greater levels of exposure.
Subject
Workplace
Cohort studies
Lifting
Low back pain
Posture
Risk factors
Video-tape recording
Workplace
Biomechanics
Body movement
Body posture
Major clinical study
Risk factor
Workload
Workplace
Adult
Cohort Studies
Female
Humans
Male
Netherlands
Occupational Diseases
Posture
Prospective Studies
Rotation
Video Recording
Weight-Bearing
Hernia rugklachten
Tillen
Lichaamsbeweging lichaamshouding
Fysieke arbeidsbelasting
Risicoanalyse storingsanalyse checklists
To reference this document use:
http://resolver.tudelft.nl/uuid:b0da6024-4285-4c74-ae39-ed14fafde684
DOI
https://doi.org/10.1097/00007632-200012010-00018
TNO identifier
235783
ISSN
0362-2436
Source
Spine, 25 (23), 3087-3092
Document type
article