Wrist motions in industry.
Ergonomics 1993 Apr; 36(4):341-351
The types and amounts of wrist motions expected in industrial jobs overall and in jobs of high and low cumulative trauma disorder risk were examined. Quantitative surveillance was performed in industries in which workers' three dimensional wrist motions were monitored by goniometers on the factory floor while they performed their tasks in a normal manner; parameters that were monitored included wrist position, angular velocity, and angular acceleration measures in each plane of movement. Forty subjects from eight industrial facilities participated in the study; 20 subjects were employed in high risk tasks and 20 in low risk tasks. There were 11 men and nine women in each group. Descriptive analyses of the selected measures indicated that the mean of the high risk subjects tended to be larger in magnitude than that of their low risk counterparts. Only the velocity and acceleration parameters resulted in significant differences between the two groups. The authors conclude that the findings demonstrate the importance of dynamic components in assessing the risk of cumulative trauma disorder.
NIOSH-Publication; NIOSH-Grant; Musculoskeletal-system-disorders; Ergonomics; Cumulative-trauma-disorders; Industrial-factory-workers; Work-analysis; Workplace-monitoring; Biomechanics; Humans
Industrial and Systems Engr Ohio State University 1971 Neil Avenue Columbus, Ohio 43210
Ohio State University, Columbus, Ohio