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A Heart Rate Evaluation Approach to Determine Cost-Effectiveness an Ergonomics Intervention

Bedny G. Z., Karwowski W., Seglin M. H.

International Journal of Occupational Safety and Ergonomics

2001

Vol. 7, No. 2

121--133

This paper describes a hear-rate methodology to determine the cost-effectiveness of an ergonomics intervention to reduce workload and improve working conditions. This is a practical approach as opposed to the energy expenditure technique that is difficult to implement in natural settings. This was a laboratory study using a large excavator cabin with devices to simulate excavation operations. Mean heart rate was used to calculate the required rest time during a shift with or without air-conditioning. The criterion for evaluation was differences in required rest time during a shift under these 2 conditions. The simplicity and objectivity of this approach invites use to solve the problem of the economic evaluation of ergonomics interventions.