Quantification of wrist motion and cumulative trauma disorders in industry.
Proceedings of the Human Factors Society 35th Annual Meeting, September 2-6, 1991, San Francisco, California. Santa Monica, CA: Human Factors and Ergonomics Society, 1991 Sep; 35(11):838-842
A quantitative study of the relationship between different wrist movements and the incidence of cumulative trauma disorders (CTDs) was presented. Forty workers from eight manufacturing facilities were classified as being at high or low risk for CTDs based on OSHA logs and medical records. The relationship between wrist motions and incidence of CTDs in these industry was quantitatively evaluated. Wrist motions were monitored using a potentiometer attached to the wrist, and pronation/supination motion monitored with a device on the forearm. Measurements of velocity and acceleration were able to more accurately predict CTD risk than positional measurements. The mean values in the high risk group were significantly greater than those in the low risk group in almost all of the velocity and acceleration dependent measures. The authors conclude that velocity and acceleration were able to distinguish CTD risk more effectively than positional variables.
NIOSH-Grant; Musculoskeletal-system-disorders; Risk-factors; Cumulative-trauma-disorders; Carpal-tunnel-syndrome; Hand-injuries; Occupational-diseases; Repetitive-work; Industrial-factory-workers
Industrial and Systems Engr Ohio State University 1971 Neil Avenue Columbus, Ohio 43210
Proceedings of the Human Factors Society 35th Annual Meeting, September 2-6, 1991, San Francisco, California
Ohio State University, Columbus, Ohio