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Sportmedizinische Forschung pp 74–82Cite as

Mechanismen der Kraftentwicklung im Muskel

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Zusammenfassung

Die Muskeln sind das am weitaus stärksten ausgebildete Organ des Menschen, sie sind gleichsam Maschinen, die während ihrer Tätigkeit chemische Energie direkt in mechanische Energie und Wärme umwandeln. Das Adenosintriphosphat (ATP) ist die unmittelbare Energiequelle der Kontraktion. Es wird im Muskel durch das Enzym Myosin hydrolytisch gespalten und damit energetisch verwertet. Dieser Prozeß wird durch ein anderes Protein, das Aktin, beschleunigt Aktin- und Myosinfilamente sind die unmittelbar am Kontraktionsprozeß beteiligten Proteinstrukturen: Die Muskelfasern verkürzen sich durch das Übereinandergleiten der Aktin- und Myosinfilamente; die Zugkräfte für diesen Verschiebeprozeß stammen von den Myosinköpfchen, die als Querbrücken und sozusagen als „molekulare Kraftgeneratoren“ fungieren.

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Authors
  1. I. Morano
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  2. J. C. Rüegg
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Editor information

Editors and Affiliations

  1. Abteilung für Sportmedizin, Im Neuenheimer Feld 710, W-6900, Heidelberg, Bundesrepublik Deutschland

    Michael Weiß

  2. Insitut für Sport- und Sportwissenschaften, Im Neuenheimer Feld 700, W-6900, Heidelberg, Bundesrepublik Deutschland

    Hermann Rieder

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© 1991 Springer-Verlag Berlin Heidelberg

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Morano, I., Rüegg, J.C. (1991). Mechanismen der Kraftentwicklung im Muskel. In: Weiß, M., Rieder, H. (eds) Sportmedizinische Forschung. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-76858-3_6

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  • DOI: https://doi.org/10.1007/978-3-642-76858-3_6

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-76859-0

  • Online ISBN: 978-3-642-76858-3

  • eBook Packages: Springer Book Archive

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