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.

This content is only available via PDF.
Copyright / Drug Dosage / Disclaimer
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.
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.
Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.
You do not currently have access to this content.