Change in the Proportion of Energy Supplied by Aerobic and Anaerobic Sources as an Explanation of the Slow Component of Oxygen Uptake

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atmire.migration.oldid3946
dc.contributor.advisorMacIntosh, Brian
dc.contributor.authorO'Connell, Jessica
dc.contributor.committeememberMillet, Guillaume
dc.contributor.committeememberSmith, David
dc.date.accessioned2015-12-22T22:25:33Z
dc.date.available2015-12-22T22:25:33Z
dc.date.issued2015-12-22
dc.date.submitted2015en
dc.description.abstractPurpose: To investigate a shift in the proportion of energy supplied through aerobic vs anaerobic metabolism as an explanation of the slow component of oxygen uptake. Methods: Pulmonary data were collected to assess the ventilation and aerobic energy contribution during constant power cycling rides. Blood lactate was measured to estimate anaerobic energetic contribution. EMG was recorded to evaluate changes in co-contraction and accessory muscle use. Results: Over time, anaerobic contributions decreased while aerobic contributions increased, presumably to compensate. Other than that required for an increasing rate of ventilation, the energy cost of activity was not different between 3-6 and 6-9 minutes of exercise. There were no changes in muscle activation consistent with no true increase in energy cost. Conclusion: These findings support the idea that the slow component can be explained by a greater proportion of energy supplied aerobically without an increasing energy cost above that required for an increase in ventilation.en_US
dc.identifier.citationO'Connell, J. (2015). Change in the Proportion of Energy Supplied by Aerobic and Anaerobic Sources as an Explanation of the Slow Component of Oxygen Uptake (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/25248en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/25248
dc.identifier.urihttp://hdl.handle.net/11023/2707
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.facultyKinesiology
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
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.
dc.subjectPhysiology
dc.subject.classificationExerciseen_US
dc.subject.classificationlactateen_US
dc.subject.classificationVO2en_US
dc.subject.classificationoxygen kineticsen_US
dc.titleChange in the Proportion of Energy Supplied by Aerobic and Anaerobic Sources as an Explanation of the Slow Component of Oxygen Uptake
dc.typemaster thesis
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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