Carpal tunnel syndrome and selected personal attributes.
Armstrong TJ; Chaffin DB
J Occup Med 1979 Jul; 21(7):481-486
The significance of hand and wrist size and stressful work methods in the development of carpal tunnel syndrome was studied. A group of 18 diseased female workers was compared to a group of 18 female controls. Both groups were engaged in production sewing of seat covers from heavy fabrics. Measurements of the hand and wrist, anterior and posterior radiographs, and various internal measurements representing wrist size in or around the carpal tunnel were analyzed. Internal measurements for the diseased and control groups did not differ significantly and no association between hand size or shape and carpal tunnel syndrome was indicated. Analysis of data on hand and wrist positions and hand force recorded by cinematography and electromyography reveals that diseased subjects tended to exert more hand force and to deviate from the straight wrist position more often than controls. The authors conclude that the findings of this and other studies indicate that certain work methods are factors of occupational carpal tunnel syndrome. Further research to test alternative work methods to control the disease and to develop a model of the pathogenesis of the syndrome is recommended.
JOCMA7; NIOSH-Publication; NIOSH-Grant; Musculoskeletal-system-disorders; Occupational-health; Nervous-system-disorders; Work-practices; Skeletal-system-injuries; Textile-products; Auto-seat-covers; Automobile-industry
Industrial & Operations Engr University of Michigan 2260 G G Brown Laboratory Ann Arbor, Mich 48109
Journal of Occupational Medicine
University of Michigan at Ann Arbor, Ann Arbor, Michigan