Correlations of Ambulatory Blood Pressure Dipping and Physical Activity among Patients with Heart Failure: Preliminary Findings

2.50
Hdl Handle:
http://hdl.handle.net/10755/155152
Type:
Presentation
Title:
Correlations of Ambulatory Blood Pressure Dipping and Physical Activity among Patients with Heart Failure: Preliminary Findings
Abstract:
Correlations of Ambulatory Blood Pressure Dipping and Physical Activity among Patients with Heart Failure: Preliminary Findings
Conference Sponsor:Sigma Theta Tau International
Conference Year:2008
Author:Tai, Mei-Kuei, RN, MSN
P.I. Institution Name:The University of Texas at Houston, Houston, Texas, USA and Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
Title:PhD Candidate and Nursing Instructor
Co-Authors:Janet C. Meininger, PhD, RN, FAAN
[Research Paper or Poster Presentation] Fluctuation in ambulatory blood pressure (BP) is due in part to physical activity (PA) corresponding to wake and sleep. BP declines during sleep (ôdippingö) as protection from consistent BP load. Patients with heart failure (HF) undergo constant neurohumoral activation, which may suppress or even eliminate dipping. The aims of this study were to estimate the correlation between BP dipping and PA among patients with HF and to compare degree of BP dipping between HF patients with no limitation of PA (New York Heart Association [NYHA] functional class I) and those with limitation of PA but no discomfort at rest (NYHA class II or III). BP at 30-minute intervals (SpaceLabs 90207) and minute-by-minute PA (Basic Motionlogger) were measured over a 24-hour period to investigate BP dipping and PA levels in community-based individuals with HF. Thirty-eight patients completed ambulatory monitoring of both BP and PA; 15 had NYHA class I and 23 had class II or III HF. There were 17 men and 21 women, aged 49 to 82 years (66.0 +/-11.3). The results indicated that there were significant positive correlations of awake PA with BP dipping (r = 0.31, 0.60, and 0.46 for systolic BP [SBP], diastolic BP [DBP], and mean arterial pressure [MAP], respectively). There was no significant difference in BP dipping, however, between class I and class II HF subjects (6.3 +/- 5.5% vs 5.9 +/- 7.4%; 10.4 +/- 6.8% vs 10.72 +/- 8.8%; 8.9 +/- 5.4% vs 7.9 +/- 7.9% in SBP, DBP, and MAP dipping, respectively). These preliminary findings suggest a positive association of PA while awake with level of BP dipping in this patient population. Further research in a larger sample of patients is warranted.
Repository Posting Date:
26-Oct-2011
Date of Publication:
17-Oct-2011
Sponsors:
Sigma Theta Tau International

Full metadata record

DC FieldValue Language
dc.typePresentationen_GB
dc.titleCorrelations of Ambulatory Blood Pressure Dipping and Physical Activity among Patients with Heart Failure: Preliminary Findingsen_GB
dc.identifier.urihttp://hdl.handle.net/10755/155152-
dc.description.abstract<table><tr><td colspan="2" class="item-title">Correlations of Ambulatory Blood Pressure Dipping and Physical Activity among Patients with Heart Failure: Preliminary Findings</td></tr><tr class="item-sponsor"><td class="label">Conference Sponsor:</td><td class="value">Sigma Theta Tau International</td></tr><tr class="item-year"><td class="label">Conference Year:</td><td class="value">2008</td></tr><tr class="item-author"><td class="label">Author:</td><td class="value">Tai, Mei-Kuei, RN, MSN</td></tr><tr class="item-institute"><td class="label">P.I. Institution Name:</td><td class="value">The University of Texas at Houston, Houston, Texas, USA and Kaohsiung Medical University Hospital, Kaohsiung, Taiwan</td></tr><tr class="item-author-title"><td class="label">Title:</td><td class="value">PhD Candidate and Nursing Instructor</td></tr><tr class="item-email"><td class="label">Email:</td><td class="value">Mei-Guei.Dai@uth.tmc.edu</td></tr><tr class="item-co-authors"><td class="label">Co-Authors:</td><td class="value">Janet C. Meininger, PhD, RN, FAAN</td></tr><tr><td colspan="2" class="item-abstract">[Research Paper or Poster Presentation] Fluctuation in ambulatory blood pressure (BP) is due in part to physical activity (PA) corresponding to wake and sleep. BP declines during sleep (&ocirc;dipping&ouml;) as protection from consistent BP load. Patients with heart failure (HF) undergo constant neurohumoral activation, which may suppress or even eliminate dipping. The aims of this study were to estimate the correlation between BP dipping and PA among patients with HF and to compare degree of BP dipping between HF patients with no limitation of PA (New York Heart Association [NYHA] functional class I) and those with limitation of PA but no discomfort at rest (NYHA class II or III). BP at 30-minute intervals (SpaceLabs 90207) and minute-by-minute PA (Basic Motionlogger) were measured over a 24-hour period to investigate BP dipping and PA levels in community-based individuals with HF. Thirty-eight patients completed ambulatory monitoring of both BP and PA; 15 had NYHA class I and 23 had class II or III HF. There were 17 men and 21 women, aged 49 to 82 years (66.0 +/-11.3). The results indicated that there were significant positive correlations of awake PA with BP dipping (r = 0.31, 0.60, and 0.46 for systolic BP [SBP], diastolic BP [DBP], and mean arterial pressure [MAP], respectively). There was no significant difference in BP dipping, however, between class I and class II HF subjects (6.3 +/- 5.5% vs 5.9 +/- 7.4%; 10.4 +/- 6.8% vs 10.72 +/- 8.8%; 8.9 +/- 5.4% vs 7.9 +/- 7.9% in SBP, DBP, and MAP dipping, respectively). These preliminary findings suggest a positive association of PA while awake with level of BP dipping in this patient population. Further research in a larger sample of patients is warranted.</td></tr></table>en_GB
dc.date.available2011-10-26T13:35:06Z-
dc.date.issued2011-10-17en_GB
dc.date.accessioned2011-10-26T13:35:06Z-
dc.description.sponsorshipSigma Theta Tau Internationalen_GB
All Items in this repository are protected by copyright, with all rights reserved, unless otherwise indicated.