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      Ambulatory Electrocardiographic Findings in Top Athletes, Athletic Students and Control Subjects

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          Abstract

          Aim of the present study was to evaluate 24 h electrocardiographic recording in 30 top athletes, 30 athletic students and 30 sedentary control subjects. Each group consisted of 15 males and 15 females and were matched for age (about 24 years). Training was not allowed during the recording. Top athletes had the lowest diurnal and nocturnal heart rate, but the difference between top athletes and athletic students was far less pronounced than between athletic students and controls. This may indicate that bradycardia reaches a lower limit with moderate degrees of training. Atrioventricular (AV) block II was found in 3 top athletes and 4 athletic students and in none of the subjects, the longest pause being 2.4 s in both athletic groups. Most episodes occurred during night and nearly all were Mobitz type I. In all cases of AV block II the QRS complexes were narrow and AV block III did not occur. SA block was found in 3 top athletes, 1 athletic student and 1 control subject, the longest pause being 3.1, 2.9 and 1.9 s, respectively. Ventricular premature beats were rare in all groups and complex ventricular arrhythmias were not found. Half of the subjects were in Lown class 0, the other half in Lown class 1. Supraventricular premature beats were also scarce and most frequent in top athletes, followed by athletic students and sedentary controls (2.0, 1.0, 0.7 beats/h, respectively).

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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
          : 84
          : 1
          : 42-50
          Affiliations
          International Cardiological Institute for Therapeutic Research (ICIT), University of Oslo, The Norwegian College of Physical Education and Sports, and Norsk Hydro, Oslo, Norway
          Article
          176327 Cardiology 1994;84:42–50
          10.1159/000176327
          8149388
          © 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: 9
          Categories
          Exercise and Cardiac Rehabilitation

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