| Accumulating short bouts of brisk walking reduces postprandial plasma triacylglycerol concentrations and resting blood pressure in healthy young men. | |
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MedLine Citation:
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PMID: 18996856 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Physical activity recommendations promote the accumulation of aerobic activity in bouts of >or=10 min. It is important to determine whether shorter bouts of activity can influence health. OBJECTIVE: We compared the effects of accumulating ten 3-min bouts of brisk walking with those of one 30-min bout of brisk walking on postprandial plasma triacylglycerol concentrations and resting blood pressure. DESIGN: Fifteen healthy young men completed three 2-d trials >or=1 wk apart in a randomized, repeated-measures design. On day 1, subjects rested (no exercise) or walked briskly in either ten 3-min bouts (30 min rest between each) or one 30-min bout (gross energy expenditure: 1.10 MJ/30 min). On day 2, subjects rested and consumed high-fat test meals for breakfast and lunch. RESULTS: On day 2 area under the plasma triacylglycerol concentration over time curve was 16% lower on the accumulated and continuous brisk walking trials than on the control trial (x +/- SEM: 9.98 +/- 0.67 compared with 9.99 +/- 0.76 compared with 11.90 +/- 1.02 mmol x 7h/L, respectively; P = 0.005, one-factor ANOVA). Resting systolic blood pressure was 6-7% lower throughout day 2 on the accumulated and continuous trials than on the control trial (109 +/- 1 compared with 110 +/- 1 compared with 117 +/- 2 mm Hg, respectively; P < 0.0005). CONCLUSION: Accumulating 30 min of brisk walking in short (3-min) bouts is equally effective in reducing postprandial lipemia and systolic blood pressure as is one continuous 30-min bout. |
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Authors:
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Masashi Miyashita; Stephen F Burns; David J Stensel |
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Publication Detail:
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Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The American journal of clinical nutrition Volume: 88 ISSN: 1938-3207 ISO Abbreviation: Am. J. Clin. Nutr. Publication Date: 2008 Nov |
Date Detail:
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Created Date: 2008-11-10 Completed Date: 2008-12-01 Revised Date: 2009-05-15 |
Medline Journal Info:
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Nlm Unique ID: 0376027 Medline TA: Am J Clin Nutr Country: United States |
Other Details:
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Languages: eng Pagination: 1225-31 Citation Subset: AIM; IM |
Affiliation:
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Exercise and Health Research Group, School of Sport and Exercise Sciences, Loughborough University, Loughborough, United Kingdom. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Analysis of Variance Area Under Curve Blood Glucose / metabolism Blood Pressure / physiology* Cross-Over Studies Energy Metabolism / physiology* Humans Insulin / blood Male Oxygen Consumption / physiology Physical Exertion / physiology Postprandial Period Time Factors Triglycerides / blood* Walking / physiology* |
| Chemical | |
Reg. No./Substance:
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0/Blood Glucose; 0/Triglycerides; 11061-68-0/Insulin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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