Muscular Differences and Structures in Various Animals

[HyperNova]

Interesting comparison between the human type I, type IIa and type IIax muscle fiber, the lion type I and type IIx muscle fiber and the caracal type I and type IIx muscle fiber.

Type I is a slow twitch muscle fiber and type IIa, IIax and IIx are fast twitch.

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B = maximum absolute force (how much force they can exerce)
C = maximum specific force (how much force they can exerce relative to their size.)
F = maximum power output

Comparison between human type IIax, lion type IIx and caracal type IIx :

*This image is copyright of its original author

Source : Lion (Panthera leo) and caracal (Caracal caracal) type IIx single muscle fibre force and power exceed that of trained humans Reply