Time to peak force of isometric extensor digitorum longus and soleus twitches and the fibre composition of the two muscles in mammals of different size at 25°C
| . | . | EDL . | . | Soleus . | . | . | ||
|---|---|---|---|---|---|---|---|---|
| Species . | Mean body mass (g) . | tp (ms) . | Fast-twitch/slow-twitch fibres (%) . | tp (ms) . | Fast-twitch/slow-twitch fibres (%) . | Reference . | ||
| Suncus etruscus | 2.2 | 11 | 100/0 | 13 | 100/0 | This study | ||
| Crocidura russula | 8.6 | 14 | 100/0 | 18 | 100/0 | This study | ||
| White mouse | 35 | 14 | 100/0 | 41 | 54/46 | Asmussen and Gaunitz (1989) | ||
| Young Wistar rat | 120 | 20 | 95/5 | 48 | 30/70 | Asmussen and Gaunitz (1989) | ||
| Wistar rat | 200 | 27* | 97/3 | 80* | 0/100 | Geers and Gros (1990) | ||
| Guinea pig | 350 | 20 | 94/6 | 94 | 0/100 | Asmussen and Gaunitz (1989) | ||
| . | . | EDL . | . | Soleus . | . | . | ||
|---|---|---|---|---|---|---|---|---|
| Species . | Mean body mass (g) . | tp (ms) . | Fast-twitch/slow-twitch fibres (%) . | tp (ms) . | Fast-twitch/slow-twitch fibres (%) . | Reference . | ||
| Suncus etruscus | 2.2 | 11 | 100/0 | 13 | 100/0 | This study | ||
| Crocidura russula | 8.6 | 14 | 100/0 | 18 | 100/0 | This study | ||
| White mouse | 35 | 14 | 100/0 | 41 | 54/46 | Asmussen and Gaunitz (1989) | ||
| Young Wistar rat | 120 | 20 | 95/5 | 48 | 30/70 | Asmussen and Gaunitz (1989) | ||
| Wistar rat | 200 | 27* | 97/3 | 80* | 0/100 | Geers and Gros (1990) | ||
| Guinea pig | 350 | 20 | 94/6 | 94 | 0/100 | Asmussen and Gaunitz (1989) | ||
EDL, extensor digitorum longus.
tp, time to peak force; *converted from 20.5 to 25°C using Q10 values obtained from Asmussen and Gaunitz(1989).