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Cover

Pediatric Fitness

Secular Trends and Geographic Variability

Editor(s): Tomkinson G.R. (Adelaide, S.A.) 
Olds T.S. (Adelaide, S.A.) 
Table of Contents
Vol. 50, No. , 2007
Section title: Paper
Tomkinson GR, Olds TS (eds): Pediatric Fitness. Secular Trends and Geographic Variability. Med Sport Sci. Basel, Karger, 2007, vol 50, pp 46-66
(DOI:10.1159/000101075)

Secular Changes in Pediatric Aerobic Fitness Test Performance: The Global Picture

Tomkinson G.R.a · Olds T.S.b
aCentre for Applied Anthropometry and b Nutritional Physiology Research Centre, School of Health Sciences, University of South Australia, Adelaide, Australia

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Article / Publication Details

First-Page Preview
Abstract of Paper

Published online: March 26, 2007
Cover Date: 2007

Number of Print Pages: 21
Number of Figures: 0
Number of Tables: 0

ISBN: 978-3-8055-8177-6 (Print)
eISBN: 978-3-318-01396-2 (Online)

Abstract

Introduction: Current attitudes towards secular changes in pediatric aerobic fitness are highly polarized, both in the popular and scientific literature. Few studies have actually quantified secular changes in pediatric aerobic fitness, with most making only informal comparisons. The aim of this study therefore, was to quantify the global change in pediatric aerobic fitness test performance. Methods: Following an extensive review of the literature, 33 pediatric studies examining secular changes in maximal field running tests of aerobic performance were analyzed. Secular changes were calculated at the country X study X age X sex X test level using least squares linear regression weighted by the square root of sample size. All secular changes were expressed as a percentage of the weighted mean value for all data points in the regression. Negative values indicated performance declines, and positive values improvements. Results: Secular changes in aerobic performance were calculated for 25,455,527 6- to 19-year-old from 27 countries (representing five geographical regions) between 1958 and 2003. Over the 45-year period, there has been a global decline in aerobic performance of -0.36% per annum. Secular changes have been very consistent across age, sex, and geographical groups. The pattern of change however, was not consistent over time, with improvements from the late 1950s until about 1970, and declines of increasing magnitude every decade thereafter. Discussion/Conclusion: This study provides the most comprehensive picture to date, of the global change in pediatric aerobic performance. It shows that there has been a precipitous decline in pediatric aerobic performance since 1970, a pattern which is not observed in pediatric anaerobic performance. This secular decline may result from a network of social, behavioral, physical, psychosocial and physiological factors.


Article / Publication Details

First-Page Preview
Abstract of Paper

Published online: March 26, 2007
Cover Date: 2007

Number of Print Pages: 21
Number of Figures: 0
Number of Tables: 0

ISBN: 978-3-8055-8177-6 (Print)
eISBN: 978-3-318-01396-2 (Online)


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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.
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.