The influence of sarcomerogenesis on the history dependence of force

dc.contributor.advisorPower, Geoffrey
dc.contributor.authorChen, Jackey
dc.date.accessioned2019-09-11T16:53:54Z
dc.date.copyright2019-08
dc.date.created2019-08-29
dc.date.issued2019-09-11
dc.degree.departmentDepartment of Human Health and Nutritional Sciencesen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.degree.programmeHuman Health and Nutritional Sciencesen_US
dc.description.abstractThe increase/decrease in isometric force following active muscle lengthening/shortening, relative to a reference isometric contraction at the same muscle length and level of activation, are referred to as residual force enhancement (rFE) and residual force depression (rFD), respectively. The purpose of my thesis was to gain further mechanistic insight into the trainability of rFE and rFD, on the basis of serial sarcomere number (SSN) alterations to length-dependent properties. Maximal rFE/rFD measures from the soleus and extensor digitorum longus (EDL) of rats were compared after 4 wks of uphill/downhill running. SSN for the soleus were greater with downhill compared to uphill running, with a trend towards more SSN for the EDL from downhill compared to no running. In contrast, absolute and normalized rFE/rFD did not differ across training groups for either muscle. As such, it appears that training-induced SSN adaptations do not modify rFE/rFD at the whole-muscle level.en_US
dc.description.embargo2020-09-09
dc.identifier.urihttp://hdl.handle.net/10214/17438
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectHistory dependenceen_US
dc.subjectForce enhancementen_US
dc.subjectForce depressionen_US
dc.subjectRaten_US
dc.subjectTrainingen_US
dc.subjectMuscleen_US
dc.subjectSarcomerogenesisen_US
dc.titleThe influence of sarcomerogenesis on the history dependence of forceen_US
dc.typeThesisen_US

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