The Effect of Prolonged Sitting on Trunk Muscle and Kinematics Responses to Suddenly Applied Loads

Simple item page
dc.contributor.advisorDrake, Janessa D M
dc.contributor.authorVasilounis, Sam Sotirios
dc.date.accessioned2020-11-13T13:53:44Z
dc.date.available2020-11-13T13:53:44Z
dc.date.copyright2020-08
dc.date.issued2020-11-13
dc.date.updated2020-11-13T13:53:44Z
dc.degree.disciplineKinesiology & Health Science
dc.degree.levelMaster's
dc.degree.nameMSc - Master of Science
dc.description.abstractProlonged sitting facilitates individuals to adopt detrimental postures that may lead to the development of low back discomfort. Interestingly, subjecting individuals to unexpected trunk perturbations can reveal altered trunk muscle activation, kinematics, and kinetics. In this research participants were exposed to two-1hr prolonged sitting exposures. Prior to, between, and post sitting exposures a 6.78 kg load was unexpectedly applied to the participants hands to perturb them. Trunk muscle electromyography, trunk kinematics, and centre of pressure (of the feet) were recorded during these unexpected perturbations. Participants who developed low back discomfort displayed increased muscle activation and longer muscle latency times in response to the unexpected perturbations. Likewise, these participants also displayed decrease centre of pressure and trunk angle displacement. Therefore, the responses to the unexpected perturbations displayed innate neuromuscular actions of the trunk that appear to increase the likelihood of an individual developing low back discomfort during prolonged sitting.
dc.identifier.urihttp://hdl.handle.net/10315/37934
dc.languageEN
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectHealth sciences
dc.subject.keywordsBiomechanics
dc.subject.keywordsPerturbations
dc.subject.keywordsKinematics
dc.subject.keywordsKinetics
dc.subject.keywordsElectromyography
dc.subject.keywordsCentre of Pressure
dc.titleThe Effect of Prolonged Sitting on Trunk Muscle and Kinematics Responses to Suddenly Applied Loads
dc.typeElectronic Thesis or Dissertation

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Vasilounis_Sam_S_2020_MSc.pdf
Size:
1.08 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
license.txt
Size:
1.87 KB
Format:
Plain Text
Description:
Download
No Thumbnail Available
Name:
YorkU_ETDlicense.txt
Size:
3.39 KB
Format:
Plain Text
Description:
Download

Collections

Kinesiology & Health Science

All items in the YorkSpace institutional repository are protected by copyright, with all rights reserved except where explicitly noted.