Gender differences in fatigability and muscle activity responses to a short-cycle repetitive task

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dc.contributor.authorSrinivasan, Divyaen
dc.contributor.authorSinden, Kathryn E.en
dc.contributor.authorMathiassen, Svend Eriken
dc.contributor.authorCote, Julie N.en
dc.contributor.departmentIndustrial and Systems Engineeringen
dc.date.accessioned2017-02-09T16:24:08Zen
dc.date.available2017-02-09T16:24:08Zen
dc.date.issued2016-12-01en
dc.description.abstractPurpose Epidemiological research has identified women to be more susceptible to developing neck-shoulder musculoskeletal disorders when performing low-force, repetitive work tasks. Whether this is attributable to gender differences in fatigability and motor control is currently unclear. This study investigated the extent to which women differ from men in fatigability and motor control while performing a short-cycle repetitive task. 113 healthy young adults (58 women, 55 men) performed a standardized repetitive pointing task. The task was terminated when the subject's perceived exertion reached 8 on the Borg scale. The time to task termination, and changes in means and cycle-to-cycle variabilities of surface electromyography signals from start to end of the task, were compared between women and men, for the upper trapezius, anterior deltoid, biceps and triceps muscles. Women and men terminated the task after 6.5 (SD 3.75) and 7 (SD 4) min on average (p > 0.05). All four muscles showed an increase of 25-35 % in average muscle activity with fatigue (no significant sex differences). However, men exhibited a higher increase than women in trapezius muscle variability with fatigue (31 vs. 7 %; p < 0.05), and a decrease in biceps muscle variability where women had an increase (-23 vs. 12 %; p < 0.05). Our results suggest that women and men may not differ in the ability to perform repetitive tasks at low-to-moderate force levels. However, differences in motor control strategies employed in task performance may explain gender differences in susceptibility to developing musculoskeletal disorders when performing repetitive work for prolonged periods in occupational life.en
dc.description.versionPublished versionen
dc.format.extent2357 - 2365 (9) page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1007/s00421-016-3487-7en
dc.identifier.issn1439-6319en
dc.identifier.issue11-12en
dc.identifier.urihttp://hdl.handle.net/10919/74977en
dc.identifier.volume116en
dc.language.isoenen
dc.publisherSpringeren
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000388936600026&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectPhysiologyen
dc.subjectSport Sciencesen
dc.subjectPointing movementen
dc.subjectMotor variabilityen
dc.subjectMultijointed movementsen
dc.subjectShoulder-elbow coordinationen
dc.subjectMotor controlen
dc.subjectCycle-to-cycle variabilityen
dc.subjectENZYME-HISTOCHEMICAL CHARACTERISTICSen
dc.subjectFIBER TYPE COMPOSITIONen
dc.subjectMUSCULOSKELETAL DISORDERSen
dc.subjectTRAPEZIUS MUSCLEen
dc.subjectSKELETAL-MUSCLEen
dc.subjectSEX-DIFFERENCESen
dc.subjectFATIGUEen
dc.subjectWORKen
dc.subjectCONTRACTIONSen
dc.subjectEXPOSUREen
dc.titleGender differences in fatigability and muscle activity responses to a short-cycle repetitive tasken
dc.title.serialEuropean Journal of Applied Physiologyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineeringen
pubs.organisational-group/Virginia Tech/Engineering/COE T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineering/Industrial and Systems Engineeringen
pubs.organisational-group/Virginia Tech/Faculty of Health Sciencesen

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