dc.contributor.author | O'Brien, Myles | |
dc.date.accessioned | 2018-08-29T15:08:17Z | |
dc.date.available | 2018-08-29T15:08:17Z | |
dc.date.issued | 2018-08-29T15:08:17Z | |
dc.identifier.uri | http://hdl.handle.net/10222/74166 | |
dc.description.abstract | Aging is associated with a decline in peripheral vascular endothelial function [i.e., flow-mediated dilation (FMD)] and cardiovagal baroreflex sensitivity (BRS), which are both critical to cardiovascular health. Accumulating evidence in younger adults suggest that high-intensity interval training (HIIT) provides superior benefits to cardiovascular health than moderate-intensity continuous training (MICT) and whole-body resistance training (RT). We tested whether 6-weeks of HIIT (n=6) improves upper- and lower-limb FMD and BRS more than MICT (n=9) and RT (n=8) in older adults (OA). FMD was assessed via high-resolution ultrasound. Cardiovagal BRS was assessed using Portapres® derived beat-by-beat systolic blood pressures and electrocardiogram-derived cardiac intervals via the ‘spontaneous baroreflex sequence’ method. Short-term HIIT and MICT elicited similar increases in BRS, brachial and popliteal FMD, whereas no changes were observed following RT. These results indicate that short-term aerobic training augments vascular health and blood pressure regulation more than RT in OA. | en_US |
dc.language.iso | en | en_US |
dc.subject | flow-mediated dilation | en_US |
dc.subject | exercise intensity | en_US |
dc.subject | vascular aging | en_US |
dc.subject | cardiovagal baroreflex sensitivity | en_US |
dc.title | The effects of short-term high-intensity interval, moderate-intensity continuous and resistance training on cardiovascular health in older adults | en_US |
dc.date.defence | 2018-07-05 | |
dc.contributor.department | School of Health & Human Performance | en_US |
dc.contributor.degree | Master of Science | en_US |
dc.contributor.external-examiner | Said Mekary | en_US |
dc.contributor.graduate-coordinator | Lynne Robinson | en_US |
dc.contributor.thesis-reader | Scott Grandy | en_US |
dc.contributor.thesis-reader | Gail Dechman | en_US |
dc.contributor.thesis-supervisor | Derek Kimmerly | en_US |
dc.contributor.ethics-approval | Received | en_US |
dc.contributor.manuscripts | Not Applicable | en_US |
dc.contributor.copyright-release | Not Applicable | en_US |