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Exercise and Weight Loss in Obese Postmenopausal Women—Reply

Exercise and Weight Loss in Obese Postmenopausal Women—Reply Exercise and Weight Loss in Obese Postmenopausal Women To the Editor: Dr Irwin and colleagues1 found that regular exercise resulted in reduced body weight and fat among overweight and obese postmenopausal women. We have 2 concerns about these conclusions. First, their sample appeared to be a highly selected group, with as many as 41% having had a higher education. It is possible that their results only apply to their highly motivated sample, and not to overweight and obese postmenopausal women in general. Second, we question the clinical relevance of the amount of weight loss in this study. The authors cite the results of the Diabetes Prevention Program Research Group, which found that a 7% reduction in body weight decreases the incidence of type 2 diabetes. They also refer to the guidelines of the National Heart, Lung, and Blood Institute, which recommend a 5% to 10% weight loss. The authors, however, only found a 1.7% difference in weight loss due to their intervention. Although their results were statistically significant, they seem to be of questionable clinical relevance. References 1. Irwin ML, Yasui Y, Ulrich CM. et al. Effect of exercise on total and intra-abdominal body fat in postmenopausal women: a randomized controlled trial. JAMA.2003;289:323-330.Google Scholar http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA American Medical Association

Exercise and Weight Loss in Obese Postmenopausal Women—Reply

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Exercise and Weight Loss in Obese Postmenopausal Women—Reply

Abstract

Exercise and Weight Loss in Obese Postmenopausal Women To the Editor: Dr Irwin and colleagues1 found that regular exercise resulted in reduced body weight and fat among overweight and obese postmenopausal women. We have 2 concerns about these conclusions. First, their sample appeared to be a highly selected group, with as many as 41% having had a higher education. It is possible that their results only apply to their highly motivated sample, and not to overweight and obese postmenopausal...
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References (3)

Publisher
American Medical Association
Copyright
Copyright © 2003 American Medical Association. All Rights Reserved.
ISSN
0098-7484
eISSN
1538-3598
DOI
10.1001/jama.289.14.1778-a
Publisher site
See Article on Publisher Site

Abstract

Exercise and Weight Loss in Obese Postmenopausal Women To the Editor: Dr Irwin and colleagues1 found that regular exercise resulted in reduced body weight and fat among overweight and obese postmenopausal women. We have 2 concerns about these conclusions. First, their sample appeared to be a highly selected group, with as many as 41% having had a higher education. It is possible that their results only apply to their highly motivated sample, and not to overweight and obese postmenopausal women in general. Second, we question the clinical relevance of the amount of weight loss in this study. The authors cite the results of the Diabetes Prevention Program Research Group, which found that a 7% reduction in body weight decreases the incidence of type 2 diabetes. They also refer to the guidelines of the National Heart, Lung, and Blood Institute, which recommend a 5% to 10% weight loss. The authors, however, only found a 1.7% difference in weight loss due to their intervention. Although their results were statistically significant, they seem to be of questionable clinical relevance. References 1. Irwin ML, Yasui Y, Ulrich CM. et al. Effect of exercise on total and intra-abdominal body fat in postmenopausal women: a randomized controlled trial. JAMA.2003;289:323-330.Google Scholar

Journal

JAMA – American Medical Association

Published: Apr 9, 2003

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