Would someone have a different fast/slow twitch muscle ratio in their chest versus their legs?
asked Mar 2, 2021 at 23:03
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This is a simple “yes” question. Are you looking for anything more than a single word answer? If so, please specify by asking.– JustSnillocMar 3, 2021 at 16:45
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1 Answer
In short yes, the percentage of slow/fast fibres will vary with muscle group. Pectoralis major tends to be about 60% fast-twitch fibres. "Legs" is a bit of a generalisation - your soleus, in common with other postural muscles, is predominantly slow-twitch fibres, other leg muscles contain more fast-twitch fibres (taken from this study):
- Soleus 70% slow-twitch
- Vastus intermedius 47%
- Gastrocnemius 50%
- Vastus lateralis 32%
