All muscles in your legs are all vitally important for sprinting but you must make sure that you exercise your quads,hamstrings,glutes and calves evenly so that they can balance each other ocordinly and so that your leg muscles are not out of proportion,therefore do not only work on one leg muscle and neglect the others.your legs muscles must be even so that one muscles is not taking more pressure than the other or cannot cope with the other,e.gthe quads and hamstrings must not be too imbalanced if they are going to be imbalanced as for example if you had strong quads and weak hamstrings and your sprint,you could get an injury to your hamstring because it is weaker and cannot cope as much with the pressure/strain the strong quads are expecting from it because they work in tandom when you sprint,so they both have to be strong.calves i belive have to be strong to,because they are carrying your body weight when you land eacg step,they also provide spring and power,don't listen to anyone who says there not important,of course they are.hamstrings have to be strong for pushing off and kicking back when running.quads provide power and explosive speed and generate alot of power.
The heart is the most important muscle in the human body because it pumps blood throughout your body.
When sprinting you use your qauds and hamstrings well basicly strength
your heart muscle is the most important muscle by far. without it we would be dead for sure. the muscle pumps blood through the body
The most important muscle in your body is your heart. Everyone should know that.
diaphram
the diaphragm is the muscle(s) that are most important muscle used in inspiration (inhalation)?
Your heart is by far the most important muscle in your body without it none of the others would work.
Name of the muscle is Trapezius.
Diaphragm
The heart is the most important muscle because it has to pump blood constantly thru out the body
hamstrings
muscle tone
muscle is one of the most important tissue in your body.you need muscle to move drink blink and everything else u eount bbe a ble to walk either.
flexor carpi radialis
The most important flight muscles are the pectorals, which correspond to the muscles of your chest :)