Effect of explosive resistance training on titin and myosin heavy chain isoforms in trained subjects
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| Deutscher übersetzter Titel: | Die Auswirkung von Explosivkrafttraining auf die Titin- und Myosin-Schwerketten-Isoforme bei trainierten Personen |
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| Autor: | McGuigan, Michael R.; Sharman, Matthew J.; Newton, Robert U.; Davie, Alan J.; Murphy, Aron J.; McBride, Jeffrey M. |
| Erschienen in: | Journal of strength and conditioning research |
| Veröffentlicht: | 17 (2003), 4, S. 645-651, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
| Sprache: | Englisch |
| ISSN: | 1064-8011, 1533-4287 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU201207004935 |
| Quelle: | BISp |
Abstract
The purpose of this investigation was to evaluate changes in myosin heavy chain (MyHC) and titin isoforms after using various loads during explosive jump squat training. Twenty-four male athletic subjects were recruited for this study. Two experimental groups performed 8-weeks of jump squats using either 30% (n = 9) or 80% (n = 9) of their previously determined 1 repetition maximum. A third group served as controls (n = 6). Muscle biopsies were obtained before and after 8 weeks from vastus lateralis. The analysis of titin within these subjects confirmed that human skeletal muscle contains 2 isoforms of titin. There was no significant group x time interaction for MyHC or titin isoform expression. The data from this investigation indicates that a relatively short period of explosive resistance training results in negligible changes in the expression of MyHC or titin isoforms. Verf.-Referat