Variation of sarcomere length, sarcomere number and tetanic tension of skeletal muscle during postnatal growth in mice
| Deutscher übersetzter Titel: | Variation der Sarkomerlaenge und -anzahl sowie der tetanischen Spannung von Skelettmuskeln waehrend des postnatalen Wachstums von Maeusen |
|---|---|
| Autor: | Kasuga, Norikatsu; Kato, Masaru; Kanamaru, Kozuko |
| Erschienen in: | Japanese journal of physical fitness and sports medicine |
| Veröffentlicht: | 37 (1988), 1, S. 46-50, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource |
| Sprache: | Japanisch |
| ISSN: | 0039-906X, 1881-4751 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU198807008991 |
| Quelle: | BISp |
Abstract
The purpose of present study was to investigate the relationship between the increase of sarcomere length, sarcomere number and tetanic tension of the extensor digitorum longus muscles during postnatal growth in mice. The following results were obtained: 1) The cross-sectional area, length of muscle and fiber length increased rapidly up to 7 th week. 2) The sarcomere number increased up to 9th week. 3) The tetanic tension per cross-sectional area decreased significantly in 7th week. 4) The maximum value of sarcomere length which was obtained at middle region of the fiber correlated significantly with the tetanic tension per cross-sectional area (the correlation coefficient: r=-0.675). The observations suggest that the local expansion of sarcomere length during postnatal growth affects the tension development. Verf.-Referat