The effects of hyperoxia on exercise performance in the cold
dc.contributor.author | Ferguson, Steven | |
dc.date.accessioned | 2017-09-06T17:39:57Z | |
dc.date.available | 2017-09-06T17:39:57Z | |
dc.identifier.uri | http://hdl.handle.net/10464/12964 | |
dc.description.abstract | This study tested whether hyperoxia improves exercise performance in moderately-cooled individuals, along with the relationship between cold and hyperoxia on cerebral and muscle oxygenation as potential mechanisms for improvement. Twelve healthy trained male cyclists each completed self-paced 15 km time trials (TT) a week apart in three environmental conditions: Neutral (23°C, FiO2: 0.21), Cold (0°C, FiO2: 0.21), and Cold+Hyper (0°C, FiO2: 0.40). Cold conditions were done after participants were passively cooled by 0.5°C rectal temperature. Performance improved with hyperoxia as TT time for Cold+Hyper was faster than Cold, with no difference found compared to Neutral (Neutral: 1479 ± 75s, Cold: 1509 ± 88s, Cold+Hyper: 1482 ± 85s). Cerebral oxygenation in Neutral and Cold+Hyper was higher than Cold throughout the TT, while Cold+Hyper reached similar levels as Neutral by 2.5 km. Improvement in TT time are likely linked to increased O2 availability allowing for improved aerobic metabolism throughout the body. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Brock University | en_US |
dc.subject | Cold Stress | en_US |
dc.subject | Tissue Oxygenation | en_US |
dc.subject | Voluntary Exercise | en_US |
dc.subject | Time Trial | en_US |
dc.subject | NIRS | en_US |
dc.title | The effects of hyperoxia on exercise performance in the cold | en_US |
dc.type | Electronic Thesis or Dissertation | en |
dc.degree.name | M.Sc. Applied Health Sciences | en_US |
dc.degree.level | Masters | en_US |
dc.contributor.department | Applied Health Sciences Program | en_US |
dc.degree.discipline | Faculty of Applied Health Sciences | en_US |
refterms.dateFOA | 2017-08-30T00:00:00Z |