| dc.contributor.author | MacKay-Lyons, Marilyn Joan. | en_US |
| dc.date.accessioned | 2014-10-21T12:35:34Z | |
| dc.date.available | 2000 | |
| dc.date.issued | 2000 | en_US |
| dc.identifier.other | AAINQ57343 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10222/55691 | |
| dc.description | It has been known for some time that most individuals with stroke have coexisting cardiac disease. What has not been adequately investigated is the cardiovascular response to exercise post-stroke. Knowledge of the responses to exercise after stroke is basic to understanding the physiologic adaptations to activity, prescribing appropriate exercise for rehabilitation, and ensuring a reasoned approach to new therapies. | en_US |
| dc.description | The primary objective of this thesis was to investigate longitudinally the metabolic and cardiorespiratory responses to exercise over the course of post-stroke recovery. The first challenge was to design a testing protocol that would permit an objective assessment of metabolic response to exercise of individuals early post-stroke. Body weight support (BWS) offsets a percentage of body mass while providing balance support, permitting safe treadmill walking for patients with motor impairments. BWS did not affect gas exchange variables although peak tidal volume (Vt) was significantly lower in the 15% BWS test. To validate the protocol for patients early post-stroke, 29 subjects performed a symptom-limited treadmill GXT with 15% BWS at 26 +/- 9 days post-stroke. | en_US |
| dc.description | A 2-phase clinical study was conducted to estimate the aerobic component of a stroke rehabilitation program. In Phase 1, heart rate (HR) responses of 20 patients post-stroke were monitored at bi-weekly intervals during 189 therapy sessions over the course of rehabilitation. The percentage of total time/therapy session spent in activities that elicited HR responses in the target HR zone was low. Phase 2 involved 23 patients whose HR was monitored during physiotherapy sessions at 1, 2, and 3 months post-stroke. The results were comparable to Phase l: 40% of time/session was spent inactive and HR responses remain stable across sessions. The mean time spent in the target HR zone was 12% of time/session. A significant increase was found in mean energy expenditure (EE) between the 1- and 3-month sessions. The main conclusion was that the stroke program did not provide adequate cardiorespiratory stress to induce a training effect. | en_US |
| dc.description | The main purpose of the final study was to investigate changes in exercise capacity and EE during level walking over the course of post-stroke recovery. (Abstract shortened by UMI.) | en_US |
| dc.description | Thesis (Ph.D.)--Dalhousie University (Canada), 2000. | en_US |
| dc.language | eng | en_US |
| dc.publisher | Dalhousie University | en_US |
| dc.publisher | | en_US |
| dc.subject | Health Sciences, Rehabilitation and Therapy. | en_US |
| dc.title | Longitudinal study of changes in exercise capacity after stroke. | en_US |
| dc.type | text | en_US |
| dc.contributor.degree | Ph.D. | en_US |
