Type II A VS Type II B muscle fiber || Muscles fiber classification

Описание: Muscles fiber classification
It is very interesting to know which muscle fiber you need to have in order to gain strength and muscle size...!!!

Muscles fiber classification
It is very interesting to know which muscle fiber you need to have in order to gain strength and muscle size...!!!

Type II A fibers
Type II A fibers are one of the types of fast-twitch fibers sometimes called intermediate fibers because they possess characteristics that are intermediate between fast fibers and slow fibers. They produce ATP relatively quickly, more quickly than Type I fibers, and thus can produce relatively high amounts of tension. They are oxidative because they produce ATP aerobically, possess high amounts of mitochondria, and do not fatigue quickly. However, Type II A fibers do not possess significant myoglobin, giving them a lighter colour than the red Type I fibers. Type II A fibers are used primarily for movements, such as walking, that require more energy than postural control but less energy than an explosive movement such as sprinting. Type II A fibers are useful for this type of movement because they produce more tension than Type I fibers but they are more fatigue-resistant than Type II B.

Type II B fibers
Type II B fibers are one of the types of fast-twitch fibers, that primarily use anaerobic glycolysis as their ATP source. They have a large diameter and possess high amounts of glycogen, which is used in glycolysis to generate ATP quickly to produce high levels of tension. Because they do not primarily use aerobic metabolism, they do not possess substantial numbers of mitochondria or significant amounts of myoglobin and therefore have a white colour. Type II B fibers are used to produce rapid, forceful contractions to make quick, powerful movements. These fibers fatigue quickly, permitting them to only be used for short periods.

First Part Type I VS Type II
   • Type 1 vs Type 2 muscle fiber || muscle fi...  

JAI SINGH

-(Gold-Medalist IITian)
-Founder, Physique Engineer-Specialised Nutritionist,
-Advanced Personal Trainer,
-Female Fitness Trainer
-Special Population Trainer
Author
Motivational speaker

SHOP

https://www.amazon.in/shop/physiqueen...

DESCRIPTION LINKS

FACEBOOK PAGE :-  / physiqueengineer1  

INSTAGRAM :-  / physiqueengineer1  

WEBSITE:- https://www.physiqueengineer.net