Skip to Main Content
Table 3.

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

EDLSoleus
SpeciesMean 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) 
EDLSoleus
SpeciesMean 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).

Close Modal

or Create an Account

Close Modal
Close Modal