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      Cardiopulmonary Exercise Capacity in Healthy Normals of Different Age

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          Abstract

          Sixty-nine healthy normals from the 3rd to the 6th decade were stressed to exhaustion by means of a cardiopulmonary exercice test on a bicycle ergometer. Peak VO<sub>2</sub>, VCO<sub>2</sub> and ventilation differed significantly between the four decades: peak VO<sub>2</sub> (x ± SD) was 3,393 ± 516; 3,061 ± 444; 2,817 ± 801 and 2,589 ± 687 ml/min (p < 0.001). The mean value for respiratory gas exchange ratio (R) at ventilatory threshold (VT) was 0.86 and for ventilatory equivalent O<sub>2</sub> (EqCO<sub>2</sub>) 0.24. Mean VO<sub>2</sub>at VTwas 1,662 ± 521; 1,462 ± 308; 1,474 ± 559 and 1,268 ± 232 ml/min (p < 0.05). The VO<sub>2</sub> of the four age groups at VT was between 47 and 49% of peak VO<sub>2</sub> (n.s.), and both parameters correlated significantly (r = 0.67, p < 0.001). The average increase of VO<sub>2</sub> in relation to work rate (ml/W/ min) was 11.5 ± 1.2 for the total exercise and was below VT lower (9.4 ± 1.9) than above VT (12.9 ± 1.2) (p < 0.001).

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1994
          1994
          18 November 2008
          : 85
          : 5
          : 341-351
          Affiliations
          Herzzentrum Bad Krozingen (Ärztl. Direktor Prof. H. Roskamm), Bad Krozingen, Germany
          Article
          176733 Cardiology 1994;85:341–351
          10.1159/000176733
          7850824
          © 1994 S. Karger AG, Basel

          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.

          Page count
          Pages: 11
          Categories
          Exercise and Cardiac Rehabilitation

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