Postures and Movements in the Most Common Tasks of Power Line Workers
Author
Summary, in English
The repair and maintenance of electrical power lines involves awkward postures, which are known risk factors for developing musculoskeletal disorders. The aim of the present study was to quantify postures and movements of upper arm, head, upper back and neck in the main tasks performed by line workers. Posture of twelve right-handed line workers was recorded by inclinometry and presented as percentiles of angular and angular velocity distributions. All tasks involved considerable upper-arm elevation, ranging from 73 degrees to 115 degrees for the 90th percentile. Upper-arm elevation showed significant differences between tasks, but no consistent differences between right and left sides. Regarding velocity, the right arm presented higher levels than the left arm. All tasks required significant extension of head, upper back and neck, ranging from 7 degrees to 67 degrees for head (10th percentile). All tasks, except the one performed with a continuous extension, also involved pronounced flexion, ranging from 33 degrees to 60 degrees for the head (90th percentile). Work which required highly elevated arms also required significant head extension (r(2)=0.56). Awkward postures of upper arms, head, upper back and neck were identified by inclinometry, demonstrating the need for preventative interventions to reduce musculoskeletal disorders among line workers.
Publishing year
2011
Language
English
Pages
482-491
Publication/Series
Industrial Health
Volume
49
Issue
4
Document type
Journal article
Publisher
National Institute of Occupational Safety and Health, Japan
Topic
- Environmental Health and Occupational Health
Keywords
- Inclinometry
- Shoulder
- Head
- Neck
- Work related musculoskeletal
- disorders
Status
Published
ISBN/ISSN/Other
- ISSN: 1880-8026