dc.contributor.author | Butler, H | |
dc.contributor.author | Hubley-Kozey, C | |
dc.contributor.author | Kozey, J | |
dc.date.accessioned | 2017-01-20T12:12:56Z | |
dc.date.available | 2017-01-20T12:12:56Z | |
dc.date.issued | 2010-04 | |
dc.identifier.citation | Published version: Butler, Heather L., Cheryl L. Hubley-Kozey, and John W. Kozey. "Characterisation of trunk muscle activation amplitude patterns during a simulated checkstand operation with continuously changing flexor and lateral moment demands." Ergonomics 53.5 (2010): 685-695. doi:10.1080/00140131003671991. | en_US |
dc.identifier.uri | http://hdl.handle.net/10222/72654 | |
dc.identifier.uri | http://dx.doi.org/10.1080/00140131003671991 | |
dc.description.abstract | While the typical physical exposure to modern-day workers has changed from heavy to low level repetitive
demands, there is limited research that examines light occupations. This study examined trunk muscle
recruitment strategies in response to a simulated checkout operation. Surface electromyography and kinematic
variables were recorded from 29 healthy subjects. Four principal patterns accounted for 95.3% of the variation.
Significant differences in scores captured different strategies in response to reach conditions and external
moment directions. Synergistic co-activation of ipsilateral back sites and differential activation among external
oblique and erector spinae sites suggests that the central nervous system may control different regions of the
trunk musculature to optimally account for asymmetrical demands. The strategy between the internal oblique
and back extensor sites suggests that a specific co-activation strategy may be needed during lighter work.
During low-load occupational tasks, several recruitment strategies were required to maintain spinal stability and
account for changing external moments. | en_US |
dc.description.sponsorship | The authors would like to acknowledge the financial
support from the Natural Sciences and Engineering
Research Council of Canada (NSERC) and the Nova
Scotia Health Research Foundation (NSHRF) | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | Taylor & Francis | en_US |
dc.relation.ispartof | Ergonomics | en_US |
dc.subject | activation amplitude patterns | en_US |
dc.subject | checkstand operations; | en_US |
dc.subject | lifting | en_US |
dc.subject | pattern recognition | en_US |
dc.subject | trunk muscle | en_US |
dc.subject | Muscles | |
dc.title | Characterisation of trunk muscle activation amplitude patterns during a simulated checkstand operation with continuously changing flexor and lateral moment demands | en_US |
dc.type | Text | en_US |
dc.rights.holder | © Copyright 2010 Taylor and Francis | |