Presence of myoglobin makes the difference between the two.
Fast-twitch muscle fibers.
Fast-twitch fibers can deliver a quick burst of power.Slow-twitch fibers can maintain a contraction for a longer time! -Apex :]
Sprints like 100- 400 meters use the most fast twitch fibers.
There are two broad types of voluntary muscle fibers: slow twitch and fast twitch. Slow twitch fibers contract for long periods of time but with little force while fast twitch fibers contract quickly and powerfully but fatigue very rapidly.
The three type of muscle fibers are fast-twitch, slow-twitch, and hybrid.
slow twitch and fast twitch
Slow twitch and fast twitch A muscle fibers.
There are fast twitch muscles fibers in all of your muscles, especially in your legs.
They tend to have more fast-twitch or slow-twitch fibers, depending on what kind of athlete they are.
Slow Twitch-type 1- Red Fiber and Fast twitch-Type 2-White Fibers. There a few more subcategories of each but this is I am guessing what you are asking for.
ofcourse not; slow twitch muscle fibers are: * smaller in diameter * red in color * depend on oxidative phosphorylation for their ATP supply * are highly vascularized (better blood supply) * have more mitochondria * more myoglobin fast twitch muscle fibers * larger * white * glycolysis is the source of ATP * less vascularized * less mitochondria * less myoglobin
Slow twitch muscle fibers have more mitochondria compared to fast twitch muscle fibers because they rely more on aerobic metabolism for energy production, which requires a higher number of mitochondria to generate ATP efficiently.