Cumulative Trauma Disorders (CTDs) of the upper extremity are physical ailments of the wrist, arm, and shoulder, caused by the cumulative effect of repeated mechanical stresses. They develop gradually over a period of time and are often believed to be work-related. In this paper, we develop a fuzzy set based methodology to predict the possibility of occurence of CTDs, given the current severity level of the risk factors in a particular work situation. We also use a set covering algorithm to determine the minimum number of CTDs which cover all the risk factors. A learning module is incorporated to constantly update the relationship between CTDs and risk factors, based on real world data. We have developed a prototype computer system and tested the model logic. The results from the initial testing indicate that the proposed methodology provides a good modeling scheme for the prediction problem.
- Cumulative trauma disorders
- Fuzzy set theory
ASJC Scopus subject areas
- Human Factors and Ergonomics
- Public Health, Environmental and Occupational Health