Muscle length adaptations to high-velocity training in young adults with Cerebral Palsy

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dc.contributor.advisorMacIntosh, Brian R.
dc.contributor.authorGallinger, Tessa Leigh
dc.contributor.committeememberCondliffe, Elizabeth G.
dc.contributor.committeememberFletcher, Jared R.
dc.contributor.committeememberSyme, Douglas A.
dc.date2019-11
dc.date.accessioned2019-07-10T20:09:58Z
dc.date.available2019-07-10T20:09:58Z
dc.date.issued2019-07-08
dc.description.abstractFascicle length is an important determinant of a muscle’s shortening velocity and excursion. Changes in fascicle length have been shown in typically developing adults following a period of high-velocity training (HVT); however, studies confirming this adaptation in Cerebral Palsy (CP) muscle are lacking. Improvements in fascicle length may allow these individuals to improve their muscular power output and therefore enhance functional movements including those used in sport performance. The purpose of this study was to evaluate high-velocity training as an intervention strategy to increase medial gastrocnemius (MG) muscle fascicle length and improve peak power outputs in CP. 12 young adults with CP (GMFCS I or II, 15-30 years) were randomly allocated to no training (CP-NT)(n=8), or training (CP-T) (n=8) for 10 weeks. 10 typically developing (TD) recreationally trained young adults (17-26 years) were also recruited for the study. The training consisted of 1-hour sessions bi-weekly for 10 weeks (20 sessions), with exercises involving sprints, plyometrics and agility tasks. Triceps surae muscle force-power-velocity and force-length relationships were quantified pre- and post-training using dynamometry and ultrasound. Triceps surae muscle moment arm was significantly different between TD (35.4 ± 3.6) and CP (29.1  5.5mm, p=0.002). The CP-T group had a significant increase in resting fascicle length (+4.1 mm, p<0.002) at a common ankle angle of 105°, but no significant change in power output and peak velocity. High velocity training was able to increase fascicle length, but additional training may be needed to enhance power output.en_US
dc.identifier.citationGallinger, T. L. (2019). Muscle length adaptations to high-velocity training in young adults with Cerebral Palsy (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/36728
dc.identifier.urihttp://hdl.handle.net/1880/110613
dc.language.isoengen_US
dc.publisher.facultyKinesiologyen_US
dc.publisher.institutionUniversity of Calgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subjectMoment Armen_US
dc.subjectultrasounden_US
dc.subjecttendon travelen_US
dc.subjectFascicle lengthen_US
dc.subjectCerebral Palsyen_US
dc.subjectHigh velocityen_US
dc.subjectTrainingen_US
dc.subject.classificationEducation--Healthen_US
dc.subject.classificationEducation--Physicalen_US
dc.subject.classificationHealth Sciencesen_US
dc.subject.classificationApplied Mechanicsen_US
dc.titleMuscle length adaptations to high-velocity training in young adults with Cerebral Palsyen_US
dc.typemaster thesisen_US
thesis.degree.disciplineKinesiologyen_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameMaster of Science (MSc)en_US
ucalgary.item.requestcopytrueen_US
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