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Development of a Cumulative Trauma Disorder Risk Assessment Model for the Upper Extremities by Vishal Seth; Roberta Lee Weston; Andris Freivalds is a Psychology article available to read on EtoBox.

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A cumulative trauma disorders (CTD) risk assessment model was developed for predicting injury incidence rates. The model is unique in that it uses quantitative data such as hand motion frequencies and forces together to obtain a frequency factor score that is reflective of the strain imposed on the muscles and tendons of the wrist. Gross upper extremity postures are included in a posture factor score and various minor job stressors are included as a miscellaneous factor score. The individual frequency, posture and miscellaneous scores were regressed against CTD incidence rates for 24 jobs in a garment sewing and a printing company to yield weights for a predicted incidence rate or risk index. The miscellaneous score was not a significant predictor (p'0.05) in determining incidence rates and thus was dropped from the model. The results showed that the model was best suited for job tasks with cycle times greater than 4 s. The final best fit model (p(0.001) explained 52.3% of the variance in predicted incidence rates and may be a useful tool in identifying jobs at risk for cumulative trauma disorders. ## Relevance to the industry The CTD risk assessment model predicts CTD incidence ra

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Author

Vishal Seth; Roberta Lee Weston; Andris Freivalds

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0169-8141)

Published

1999

Language

EN

Field

Psychology (Social Sciences)