Uncertainty in monetary cost estimates for assessing working postures using inclinometry, observation or self-report
MetadataShow full item record
© 2018 Objective: To assess uncertainty in cost estimates for collecting posture data by inclinometry, observations and self-report. Method: In a study addressing physical workloads at a paper mill, costs were calculated for measuring postures of twenty-eight workers during three shifts. Uncertainty in costs was assessed for all three methods as the range between an assumed best case (lowest cost) and worst case (highest cost) using scenario analysis. Results: The cost for observation was larger, but also more uncertain (€16506 and €89552 in the best and worst case, respectively) than that of inclinometry (€7613 - €45896). Self-report costs were both lower and less uncertain (€3743 - €23368). Conclusions: The extent of uncertainty in cost estimates implies that observation could be less expensive than inclinometry, e.g., in a scenario where experienced observers could use existing software, while inclinometers would have to be purchased. We propose adding uncertainty assessments to cost estimates when selecting a method for measuring working postures, and offer guidance in how to proceed in a specific setting.
Showing items related by title, author, creator and subject.
Cost-efficient assessment of biomechanical exposure in occupational groups, exemplified by posture observation and inclinometryTrask, C.; Mathiassen, Svend; Wahlström, J.; Forsman, M. (2014)Objectives This study compared the cost efficiency of observation and inclinometer assessment of trunk and upper-arm inclination in a population of flight baggage handlers, as an illustration of a general procedure for ...
Predicting Directly Measured Trunk and Upper Arm Postures in Paper Mill Work From Administrative Data, Workers' Ratings and Posture ObservationsHeiden, M.; Garza, J.; Trask, C.; Mathiassen, Svend (2017)Objectives: A cost-efficient approach for assessing working postures could be to build statistical models for predicting results of direct measurements from cheaper data, and apply these models to samples in which only ...
Observer performance in estimating upper arm elevation angles under ideal viewing conditions when assisted by posture matching softwareJackson, J.; Mathiassen, Svend; Liv, P. (2016)© 2016 Elsevier Ltd and The Ergonomics Society. Selecting a suitable body posture measurement method requires performance indices of candidate tools. Such data are lacking for observational assessments made at a high ...