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Changes in trunk sway of quay crane operators during work shift: A possible marker for fatigue?
- Source :
-
Applied Ergonomics . Nov2017, Vol. 65, p105-111. 7p. - Publication Year :
- 2017
-
Abstract
- This study investigated changes in task-induced trunk sway of quay crane operators during a four-hour shift performed in a dedicated simulator as an indicator of postural control system effectiveness. Using a pressure sensitive mat placed on the seat pan, center-of-pressure (COP) time series were acquired and processed to calculate sway area, path length and COP displacements and velocities. The results show a well-defined linear trend for sway path and area, with significant increases starting from 65 to 155 min of work respectively. This indicates non-optimized trunk control most likely originated by the combination of physical and cognitive workload and suggests a possible role of long-term monitoring of trunk sway of crane operators as a useful tool in detecting non-optimized movements potentially associated with deteriorating performance. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036870
- Volume :
- 65
- Database :
- Academic Search Index
- Journal :
- Applied Ergonomics
- Publication Type :
- Academic Journal
- Accession number :
- 124577740
- Full Text :
- https://doi.org/10.1016/j.apergo.2017.06.007