NCJ Number
89895
Journal
Applied Ergonomics Volume: 13 Issue: 3 Dated: (September 1982) Pages: 163-170
Date Published
1982
Length
8 pages
Annotation
Ergonomics experiments were performed in a police command-control center using computer-controlled text processing systems with three alternative input devices: function keys, a light pen, and a touch panel.
Abstract
Fourteen operators were examined while using the alternative devices. Significant differences were found between the devices in terms of sensory and motor activities, local muscular strain, transgressions of tolerance limits for 4-hour work sessions, and increases in heart rate. Suggestions for redesigning the control center are given, using anthropometric analysis. The relations between the suboptimal design of a work system and the resulting strain is also shown. Five references, figures, and photographs are included. (Author abstract modified)