Täs on vähän tieteellisempi näkökulma asiaan.
[h=2]The Calves[/h] The long, deeper calf muscle, the soleus, keeps you upright all day and is correspondingly close to 90% slow twitch, so don't bother with reps below 15. The gastrocnemius is often called the fast twitch dominant part of the calves, but that's only compared to the super slow soleus.
The lateral head is indeed fast-twitch dominant, but only by a few percent, and the medial head is actually slow-twitch dominant by a few percent, so use medium volume for the gastrocs. You can emphasize the medial head by pointing your toes out and the lateral head by pointing the toes in.
Both the soleus and the gastrocs perform plantar flexion, but the biarticulate gastrocs also flex the knee, and they can't flex at both joints at the same time. Therefore, you can isolate the hamstrings during knee flexion and the soleus during plantar flexion by plantar flexion and knee flexion, respectively.