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dc.contributor.authorHardie, Rebecca
dc.contributor.authorHaskew, Rachel
dc.contributor.authorHarris, Joel
dc.contributor.authorHughes, Gerwyn
dc.date.accessioned2015-06-23T14:21:10Z
dc.date.available2015-06-23T14:21:10Z
dc.date.issued2015-03-01
dc.identifier.citationHardie , R , Haskew , R , Harris , J & Hughes , G 2015 , ' The effects of bag style on muscle activity of the trapezius, erector spinae and latissimus dorsi during walking in female university students ' , Journal of Human Kinetics , vol. 45 , no. 1 , pp. 39-47 . https://doi.org/10.1515/hukin-2015-0005
dc.identifier.issn1899-7562
dc.identifier.otherPURE: 8670523
dc.identifier.otherPURE UUID: d97c25bd-6293-4d49-905e-0d2d723a430e
dc.identifier.otherScopus: 84927727810
dc.identifier.urihttp://hdl.handle.net/2299/16065
dc.description© by The Author(s). This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. (CC BY-NC-ND 3.0)
dc.description.abstractBack pain is common in adolescents which has been associated with carrying a bag. However, there is little research examining the effects of bag style in female adolescents. The aim of the study was to investigate the effects of different bag conditions on muscle activity of the trapezius, erector spinae and latissimus dorsi muscles in female university students during walking. Twelve female university students walked on a treadmill for 5 minutes at 1.1 m/s during five conditions; control, 1 strapped rucksack, 2 strapped rucksack, ipsilateral shoulder strap and contralateral shoulder strap, each containing 10% bodyweight. Electromyography for the trapezius, erector spinae and latissimus dorsi was recorded for the last 30 s of each condition. Two-way ANOVA and paired t-tests were used to identify differences between right and left muscles and between bag conditions. Results showed that muscle activity of the left trapezius was significantly higher than the right trapezius during the 1 strap rucksack condition. For the left trapezius, the 2 strapped rucksack and the control condition had significantly lower muscle activity compared to the 1 strapped rucksack and the ipsilateral shoulder strap. For the left erector spinae muscle, there was significantly greater muscle activity when wearing the contralateral shoulder strap compared to the control. For the right erector spinae, significantly lower muscle activity was observed when wearing the 2 strapped rucksack compared to the ipsilateral shoulder strap and contralateral shoulder strap. There were no significant differences in muscle activity of the latissimus dorsi muscles between any of the bag conditions. These findings suggest that a two strapped rucksack should be used when carrying loads to reduce spinal muscle activity which may, in turn, reduce reports of back pain in female adolescenten
dc.language.isoeng
dc.relation.ispartofJournal of Human Kinetics
dc.rightsOpen
dc.titleThe effects of bag style on muscle activity of the trapezius, erector spinae and latissimus dorsi during walking in female university studentsen
dc.contributor.institutionSchool of Life and Medical Sciences
dc.contributor.institutionDepartment of Human and Environmental Sciences
dc.contributor.institutionHealth & Human Sciences Research Institute
dc.contributor.institutionSports Sciences
dc.contributor.institutionSport, Health and Exercise
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Life and Medical Sciences
dc.description.versiontypeFinal Published version
dcterms.dateAccepted2015-03-01
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1515/hukin-2015-0005
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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