| A comparison of the effects of swimming and walking on body weight, fat distribution, lipids, glucose, and insulin in older women--the Sedentary Women Exercise Adherence Trial 2. | |
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MedLine Citation:
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PMID: 20197194 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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All types of aerobic exercise are assumed to affect cardiovascular risk similarly. There are few studies of swimming, but complex responses to water-based exercise suggest its potential for differential effects. The aim of the study was to compare the effects of swimming and walking on fitness, body weight, lipids, glucose, and insulin in older women. Sedentary women aged 50 to 70 years (N = 116), randomly assigned to swimming or walking plus usual care or a behavioral intervention, completed 3 sessions per week of moderate-intensity exercise, supervised for 6 months then unsupervised for 6 months. After 6 months, 1.6-km walk time decreased in walkers and swimmers, with greater improvement in walkers (1.0 vs 0.6 minute, P = .001). In swimmers, but not walkers, distance swum in 12 minutes increased (78.1 vs -2.2 m, P = .021). Waist and hip circumferences (80.8 vs 83.1 cm and 101.8 vs 102.4 cm; P = .023 and P = .042, respectively) and insulin area under the curve (oral glucose tolerance test) (5128 vs 5623 μU/[L 120 min], P < .05) were lower with swimming. Lipids did not differ between groups. At 12 months, fitness was maintained. Relative to walking, swimming reduced body weight by (1.1 kg, P = .039) and resulted in lower total and low-density lipoprotein cholesterol (0.3 and 0.2 mmol/L; P = .040 and P = .049, respectively). The magnitude of the difference in the reduction of insulin area under the curve between swimming and walking was greater at 12 months; however, the significance was attenuated (4677 vs 5240 μU/[L 120 min], P = .052). Compared with walking, swimming improved body weight, body fat distribution, and insulin in the short term and, in the longer term, body weight and lipid measures. These findings suggest that the type of exercise can influence health benefits. |
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Authors:
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Kay L Cox; Valerie Burke; Lawrence J Beilin; Ian B Puddey |
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Publication Detail:
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Type: Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't Date: 2010-03-02 |
Journal Detail:
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Title: Metabolism: clinical and experimental Volume: 59 ISSN: 1532-8600 ISO Abbreviation: Metab. Clin. Exp. Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-10-26 Completed Date: 2010-12-15 Revised Date: 2011-01-25 |
Medline Journal Info:
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Nlm Unique ID: 0375267 Medline TA: Metabolism Country: United States |
Other Details:
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Languages: eng Pagination: 1562-73 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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School of Medicine and Pharmacology, University of Western Australia, Western Australian Institute for Medical Research, Perth, Western Australia 6847, Australia. kay.cox@uwa.edu.au |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Blood Glucose Body Fat Distribution Body Weight Cardiovascular Diseases / etiology Female Humans Insulin Lipids / blood Middle Aged Sedentary Lifestyle* Swimming* / physiology Walking* / physiology |
| Chemical | |
Reg. No./Substance:
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0/Blood Glucose; 0/Lipids; 11061-68-0/Insulin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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