Fast Fibers

less extensive blood supply and fewer mitochondria because oxidative metabolism is of a secondary importance, most ATP production is without oxygen

anaerobic metabolism

what two changes can exercise change in muscle fibers?

changes in their oxidative ATP synthesizing capacity and muscle size

slow twitch fiber usually appear in what color meat?

dark

Splti atp at a rapid rate and thus have a fast contraction velocity after stimulation, but fatigue rapidly

fast twitch

The inability of the muscle to contract forcefully after long periods of activity

muscle fatigue

Regular anaerobic, short duration, high intensity resistance training, such as weight lifting can cause..

muscle hypertrophy

what stores oxygen temporarily until the muscle needs it?

myoglobin

fast twitch fibers in meat usually gives the meat what color appearance?

white

name a couple reasons for muscle fatigue

-accumulation of waste products (lactic acid) -depletion of ATP, glycogen, and/or creatine phosphate -insufficient oxygen to make ATP

what does white meat not have that dark meat does have?

relatively little blood supply and less myoglobin

fast twitch is best suited for what?

throwing a ball or weight lifting