期刊
APPLIED ERGONOMICS
卷 39, 期 2, 页码 255-260出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apergo.2007.03.006
关键词
case-referent; computer work; inclinometry
Prolonged computer work with an extended neck is commonly believed to be associated with an increased risk of neck-shoulder disorders. The aim of this study was to compare neck postures during computer work between female cases with neck-shoulder disorders, and healthy referents. Based on physical examinations, 13 cases and 11 referents were selected among 70 female air traffic controllers with the same computer-based work tasks and identical workstations. Postures and movements were measured by inclinometers, placed on the forehead and upper back (C7/Th1) during authentic air traffic control. A recently developed method was applied to assess flexion/extension in the neck, calculated as the difference between head and upper back flexion/extension. Results: cases and referents did not differ significantly in neck posture (median neck flexion/extension: -10 degrees vs. -9 degrees; p = 0.9). Hence, the belief that neck extension posture is associated with neck-shoulder disorders in computer work is not supported by the present data. (c) 2007 Elsevier Ltd. All rights reserved.
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