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Zusammenfassung

Nach Immobilisation verringern sich Muskelmasse und -kraft aufgrund einer Atrophie, die einzelnen Muskelfasern sind durchschnittlich dünner. Rote Muskelfasern scheinen besonders anfällig für eine Immobilisationsatrophie zu sein. Im Verlauf der Atrophie zeigen viele Fasern degenerative Veränderungen, sie spalten sich teilweise auf und werden nekrotisch. Eine Entzündungsreaktion tritt auf, und noch im immobilisierten Muskel beginnen Regenerationsprozesse, die ihren Ursprung in den Satellitenzellen nehmen. Diese differenzieren sich zu Myoblasten und Myotuben, schließlich bilden sie neue Muskelfasern. Aufgrund der regenerativen Kapazität der Skelettmuskulatur ist die Annahme eines Immobilisationsschadens nicht gerechtfertigt.

Summary

Immobilization of skeletal muscle leads to reduction of muscle mass and strength. This is caused by a decrease of mean fiber diameters. Red fibers are most probably more susceptible to immobilization than white fibers. A large number of muscle fibers split and parts of them become necrotic. Thus an inflammatory response is achieved, subsequently regenerative processes occur still in immobilized muscles. New muscle fibers differentiate from satellite cells, myoblasts and myotubes. Because of the regenerative capacity of skeletal muscle, it is not justified to assume substantial muscle injure during immobilization.

Anschrift des Verfassers: Priv.-Doz. Dr. med. H.-J. Appell, Institut für Experimentelle Morphologie, Deutsche Sporthochschule Köln, Carl-Diem-Weg, 5000 Köln 41

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© 1985 Springer-Verlag Berlin Heidelberg

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Appell, HJ. (1985). Gibt es den Immobilisationsschaden der Skelettmuskulatur?. In: Franz, IW., Mellerowicz, H., Noack, W. (eds) Training und Sport zur Prävention und Rehabilitation in der technisierten Umwelt / Training and Sport for Prevention and Rehabilitation in the Technicized Environment. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-70301-0_16

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  • DOI: https://doi.org/10.1007/978-3-642-70301-0_16

  • Publisher Name: Springer, Berlin, Heidelberg

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