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- #21
Originally posted by MartialArtist
There's also muscle fibers... There are two main muscle types, and one of them has two parts to that group. Depending on the composition, it can change some physical aspects.
Muscle group I - Slender. People with this type are usually in some type of long stamina-related type of thing such as marathons. Red muscle.
Muscle group II - Fast twitch muscle. Explosive athletes have this type of muscle group. When working out, these muscle fibers are the ones that grow. White muscle.
There are two Group II muscles. IIa and IIb. IIb is the fastest-twitching but tire out the easiest.
For instance, most World Cup soccer players have IIa (although many have I or IIb.). Explosive positions that don't have to run forever such as halfback (American Football) have this. Martial artists can vary.
I'm no expert on muscle fibers, but there are is some general reading that you can find online.
since muscle groups are herditary, not everybody can be a weight lifter or a football plater. or martial artist or marathon runner huh. i gotta say that these replies are really helpful