Journal
APPLIED ERGONOMICS
Volume 94, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apergo.2021.103424
Keywords
Footstep strategies; Step; Classification
Categories
Funding
- Mitacs Acceleration
- Institut de recherche Robert-Sauve en sante et en securite du travail (IRSST) [2017-0050]
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The study aimed to develop a new taxonomy for assessing foot positions and motions in manual material handling tasks, and evaluate reliability and reproducibility using various statistical measures. The results showed substantial and almost perfect reliability and reproducibility overall, with acceptable performance compared to similar studies.
Current taxonomies for assessing foot strategies in manual material handling lack exhaustive classification of foot movements and foot positioning. They also fail to consider different instants of the task as checkpoints to relate foot strategies. The goal of the study was first to develop a new taxonomy to assess foot positions and motions considering those limitations. The second goal was to assess reliability and reproducibility using raw agreement percentages, Cohen's kappa, prevalence-adjusted, bias-adjusted kappa and Gwet's AC1. A filmed task consisted of transferring boxes from one pallet to another. Intra- and inter-rater reliability were assessed reviewing 23% and 10%, respectively, of video data. Reproducibility and reliability results are substantial and almost perfect on average. In comparison to similar studies, reproducibility and reliability were considered acceptable.
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