Ich hab mal folgenden youtube-Kommentar gelesen:

"white fibers = fast twitch
Red fibers = slow twitch

fast twitch fibers are 30% bigger than slow twitch

If you work your fast twitch fibers out you will gain massive size compared to building slow twitch fibers.

How do you build fast twitch? by using EXPLOSIVE movements with heavy wieght.
-from the "Ecyclopedia of body building" by Arnold"

Ist da was dran?