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Please use this identifier to cite or link to this item: http://hdl.handle.net/11375/23364
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DC FieldValueLanguage
dc.contributor.advisorMcCartney, Neil-
dc.contributor.authorTaylor, Andrea-
dc.date.accessioned2018-09-28T19:31:07Z-
dc.date.available2018-09-28T19:31:07Z-
dc.date.issued1999-08-
dc.identifier.urihttp://hdl.handle.net/11375/23364-
dc.description.abstractThis study examined the effects of isometric handgrip (IHG) training on resting blood pressure (RBP), heart rate variability (HRV) and blood pressure variability (BPV) in older adults with hypertension. Nine subjects performed four 2-minute IHG contractions at 30% maximal voluntary contraction (MVC) 3 days/week for 10 weeks and 8 subjects served as controls. Power spectral analysis (PSA) of HRV and BPV was used to assess changes in modulation of the autonomic nervous system. After training, there was a marked attenuation in arterial pressure and evidence for a shift in HR.V and BPV sympathovagal balance. There was a reduction in systolic blood pressure (156 ± 9.4 to 137 ± 7.8 mm Hg; p<0.05), diastolic blood pressure (82 ± 9.3 to 75 ± 10.9 mm Hg; N.S), mean arterial pressure (107 ± 8.53 to 96 ± 8.7 mm Hg; p<0.05) and resting heart rate (RHR) (70 ± 14.2 to 68 ± 12.1 beats/min). In addition, PSA of HRV showed a decrease in sympathetic modulation represented by low frequency (LF) area, an increase in parasympathetic modulation represented by high frequency (HF) area (p<0.05) and a decrease in LF:HF area ratio. After training, BPV PSA showed a decrease in systolic blood pressure LF area (p<0.05), an increase in HF area (p<0.05) and decrease in LF:HF area (p<0.05). Similar, but non-significant changes occurred in diastolic BPV. It is concluded that isometric training at a moderate intensity can elicit a hypotensive response and can potentially alter sympathovagal balance of HRV and BPV in older adults with hypertension.en_US
dc.language.isoenen_US
dc.subjectisometric handgrip trainingen_US
dc.subjectresting blood pressureen_US
dc.subjectheart rate variabilityen_US
dc.subjectblood pressureen_US
dc.subjectblood pressure variabilityen_US
dc.subjecthypertensionen_US
dc.titleEffects of Isometric Handgrip Training on Resting Blood Pressure, Heart Rate Variability and Blood Pressure Variability in Older Adults with Hypertensionen_US
dc.typeThesisen_US
dc.contributor.departmentKinesiologyen_US
dc.description.degreetypeThesisen_US
dc.description.degreeMaster of Science (MS)en_US
Appears in Collections:Digitized Open Access Dissertations and Theses

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