| Accumulation of physical activity: blood pressure reduction between 10-min walking sessions. | |
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MedLine Citation:
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PMID: 18463671 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The accumulation of intermittent bouts of physical activity (PA) has been found to reduce blood pressure (BP) in prehypertension and hypertension. Yet, the BP response among several short sessions within the accumulation of PA in a single day has not been examined. The purpose of the study was (1) to investigate the BP reduction during the rest periods following three successive 10-min walking sessions accumulated over a 3-h period in prehypertensive adults and (2) to observe the role of autonomic modulation during the rest periods following each short PA session. Adults with prehypertension (131.9+/-4.7/82.5+/-6.4 mm Hg) participated in the study. BP using ambulatory monitoring and autonomic modulation through heart rate variability (HRV) using Holter monitoring were measured at baseline and during the rest periods following three short sessions (three 10-min treadmill walks at 50% of peak oxygen uptake (VO2peak); at least 50 min apart) over a 3-h period. Variables of BP and autonomic modulation were averaged for the baseline and for the rest periods following each 10-min walk. One-way analysis of variance with repeated measures was used to test the differences over time in BP and HRV (P<0.05). A significant main effect was found in systolic BP (P=0.039), whereas none was found in diastolic BP (P=0.630). Systolic BP was decreased following the third short session (-4.0+/-7.4 mm Hg) compared to baseline. No significance was found in any of the autonomic modulation variables. In conclusion, accumulating intermittent bouts of PA, as short as 10 min, total 30-min walk sessions may reduce systolic BP in prehypertension. |
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Authors:
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S Park; Ld Rink; Jp Wallace |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-05-08 |
Journal Detail:
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Title: Journal of human hypertension Volume: 22 ISSN: 0950-9240 ISO Abbreviation: J Hum Hypertens Publication Date: 2008 Jul |
Date Detail:
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Created Date: 2008-06-19 Completed Date: 2008-10-28 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8811625 Medline TA: J Hum Hypertens Country: England |
Other Details:
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Languages: eng Pagination: 475-82 Citation Subset: IM |
Affiliation:
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Division of Sports Science, Korea Institute of Sport Science, Seoul, Korea. saejpark@sports.re.kr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Autonomic Nervous System / physiology Blood Pressure / physiology* Blood Pressure Monitoring, Ambulatory Female Heart Rate / physiology Humans Hypertension / physiopathology, therapy Male Middle Aged Motor Activity / physiology* Oxygen Consumption / physiology Rest Time Factors Walking / physiology* |
| Comments/Corrections | |
Comment In:
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J Hum Hypertens. 2008 Jul;22(7):444-6
[PMID:
18432256
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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