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Original Paper

Fat Loss Depends on Energy Deficit Only, Independently of the Method for Weight Loss

Strasser B.a · Spreitzer A.b · Haber P.a

Author affiliations

aDepartment of Internal Medicine IV, Division of Sports Medicine, Medical University Vienna, and bInstitute of Nutritional Sciences, University of Vienna, Vienna, Austria

Related Articles for ""

Ann Nutr Metab 2007;51:428–432

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: November 07, 2006
Accepted: April 20, 2007
Published online: November 20, 2007
Issue release date: December 2007

Number of Print Pages: 5
Number of Figures: 0
Number of Tables: 3

ISSN: 0250-6807 (Print)
eISSN: 1421-9697 (Online)

For additional information: http://www.karger.com/ANM

Abstract

Background: This study was designed to compare the effects of 2 different but isocaloric fat reduction programs with the same amount of energy deficit – diet alone or diet combined with aerobic training – on body composition, lipid profile and cardiorespiratory fitness in non- or moderately obese women. Methods: Twenty non- or moderately obese (BMI 24.32 ± 3.11) females (27.3 ± 6.6 years) were tested at the beginning and after an 8-week period of a mild hypocaloric diet for the following parameters: (1) body mass and body fat; (2) total cholesterol, HDL-C, LDL-C and triglycerides; (3) lactate (millimol/liter) during submaximal exertion (100 W); (4) heart rate during submaximal exertion (100 W), and (5) maximum exercise performance (watt). Subjects were randomly divided into either a diet alone (D, –2,095 ± 659 kJ/day) or a diet (–1,420 ± 1,084 kJ/day) plus exercise (DE, three 60-min sessions per week at 60% of VO2max or –5,866 kJ/week) group. Results: Body mass and body fat decreased significantly in D (–1.95 ± 1.13 kg or –1.47 ± 0.87%; p < 0.05) and DE (–2.23 ± 1.28 kg or –1.59 ± 0.87%; p < 0.05), but there was no significant difference observed between the groups. Statistical analysis revealed no significant changes of total cholesterol, HDL-C, LDL-C, triglycerides and heart rate during submaximal exertion (100 W). Lactic acid accumulation during submaximal exertion (100 W) decreased significantly (–0.8 ± 1.4 mmol/l, p < 0.05) in DE and increased significantly (+0.4 ± 0.5 mmol/l, p < 0.05) in D. Maximum exercise performance improved significantly (+12.2 ± 8.8 W, p < 0.05) in DE and did not change significantly in D. Conclusions: This study showed that independently of the method for weight loss, the negative energy balance alone is responsible for weight reduction.

© 2007 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: November 07, 2006
Accepted: April 20, 2007
Published online: November 20, 2007
Issue release date: December 2007

Number of Print Pages: 5
Number of Figures: 0
Number of Tables: 3

ISSN: 0250-6807 (Print)
eISSN: 1421-9697 (Online)

For additional information: http://www.karger.com/ANM


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Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher or, in the case of photocopying, direct payment of a specified fee to the Copyright Clearance Center.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
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