I know the calves are generally made up of slow twitch fibers. Just to give me a rough idea, and i can go from there. Is there any way i can do something to determine which muscles on my body are which types of fibers? I can tell you that i dont rep out well when i bench, but before i was able to get 245, 255, and 265 all 1 time. Does that mean i am more fast twitch in my triceps and chest? That would mean training my chest n tri's with heavier weight right? Please give me some insight here.