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      Effects of Growth Hormone on Skeletal Muscle

      Hormone Research in Paediatrics

      S. Karger AG

      Muscle, Strength, Growth hormone

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          Human growth hormone (GH) is widely abused as a performance-enhancing anabolic drug by athletes and bodybuilders. However, the effects of GH on skeletal muscle mass, strength and fibre composition remain unclear. We therefore summarize in the following the current knowledge on the physiological role of GH in the regulation of skeletal muscle growth and function and evaluate its potential therapeutic potency as a muscle anabolic hormone. In states of GH deficiency, reduced muscle mass and strength are characteristic findings which can be reversed successfully by the supplementation of GH. In contrast, the currently available data suggest that GH administration alone or in combination with strength exercise has little, if any, effect on muscle volume, strength and fibre composition in non-GH-deficient healthy young individuals. This assumption is supported by the lack of evidence for a significant performance-enhancing effect of GH in athletes. However, further studies will be necessary to define patient populations which might benefit from GH treatment like frail elderly individuals in whom a GH-induced change into a more youthful muscle fibre composition has been reported.

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          Most cited references 12

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          Clinical aspects of growth hormone deficiency in adults

           H. de Boer (1995)
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            Effect of recombinant human growth hormone on the muscle strength response to resistance exercise in elderly men

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              Two Years of Growth Hormone (GH) Treatment Increase Isometric and Isokinetic Muscle Strength in GH-Deficient Adults

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                Author and article information

                Horm Res Paediatr
                Hormone Research in Paediatrics
                S. Karger AG
                November 2002
                17 November 2004
                : 58
                : Suppl 3
                : 43-48
                Klinik II und Poliklinik für Innere Medizin der Universität zu Köln und Lehrstuhl II für Innere Medizin des Krankenhauses Köln-Merheim, Deutschland
                66482 Horm Res 2002;58(suppl 3):43–48
                © 2002 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
                Figures: 1, Tables: 1, References: 62, Pages: 6
                GH and the Muscular-Skeletal System


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