Muscular System

Are the slow twitch and fast twitch the types of muscle fibers?

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2010-11-16 09:56:23
2010-11-16 09:56:23

technically muscle fibres are classified as red or white but they are the same thing

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The three type of muscle fibers are fast-twitch, slow-twitch, and hybrid.


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.



Type 1 (slow twitch oxidative) , type 2a (fast twitch oxidative) and type 2b (fast twitch glycolytic).



Red muscle fibers are slow twitch muscle fibers because they contain oxygen and produce ATP and are used more for endurance. White muscle fibers are fast twitch IIA and fast twitch IIB


Different types of fibers that make up muscles, twitch in accordance to how much ATP is needed for energy. Fast twitch is for activities like sprinting, slow twitch is good for long distance running



Slow twitch and fast twitch A muscle fibers.


Fast-twitch fibers can deliver a quick burst of power. Slow-twitch fibers can maintain a contraction for a longer time


Basically the genetic makeup of your body, the muscle fibers, people are born with two types of fibers, slow twitch and fast twitch which is used for dunking. www.dunkerprodigy.com



You are thinking of muscle fibers types. Skeletal muscle fibers are grossly divided into two type; slow twitch (type I) and fast twitch (type II).Slow twitch fibers are capable of continuous extended contractions and therefore, do not fatigue quickly. Fast twitch fibers are used for short rapid bursts of energy and as such fatigue more quickly than slow twitch fibers.



Strength and power exercise like weight lifting requires the explosive release of energy yielded by fast-twitch muscle fibers. Slow-twitch muscles are involved in endurance activity.


Muscular endurance is determined by how well your slow twitch muscle fibers are developed.In case your wondering what slow twitch muscle fibers are: there are generally two types of muscle fibers in your body, slow twitch and fast twitch. Slow twitch muscle fibers cannot exert as much force as fast twitch, but can sustain an effort over a much greater period of time. Fast twitch muscle fibers can exert a great amount of force but for a very limited amount of time. Therefore, slow twitch equals endurance, while fast twitch equals strength.If you are looking to improve muscular endurance, the best way would be to involve yourself in just about any cardivascular activity, running, biking, and playing sports.If you are looking to improve the endurance of your upper body, bodyweight exercises such as chin-ups, push-ups, triceps dips, etc., will improve this, and your strength as well.



Our bodies are made up of different types of muscle fibers, all of which rely on different energy systems. Slow twitch fibers, as the name suggests, contract more slowly than fast twitch muscle fibers and they can contract for a longer period of time. We often call these 'endurance' muscles because they're great for aerobic activities that require endurance like running, cycling and swimming. In general, many of us will have about 50% slow twitch fibers and 50% fast twitch fibers, although it will differ between individuals. Successful long-distance runners will often have more slow twitch fibers while sprinters or bodybuilders will often have more fast twitch fibers. Strength training in different rep ranges (from 4-16) will allow you to work different muscle fibers and energy systems in your body.


Facts about the two types of "fast twitch muscle fibers" include all of these statements: A more power and strength B fatigues faster and longer recovery time C Type IIa endurance but less strength D Type IIb strength but less endurance


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


There is no proven way to gain muscle fibers. Some research has shown that through intense explosive exercises VERY FEW slow twitch fibers will be converted to fast twitch. Other research, shown only in ANIMAL testing, has suggested that super high weight and low rep (1-3) will actually CREATE NEW fast twitch muscle fibers. But your pre-existing fast twitch muscle fibers can gain massive increases in size through explosive exercises. Examples of these exercises would be sprints, high weight low rep resistance training, and Olympic lifts. Remember, there is no proven way for HUMANS to actually gain new muscle fibers.


There are two types of muscle fibers, fast-twitch and slow-twitch. Each muscle is a combination of different proportions of these fibers. Muscles in different people have different compositions, which is why some athletes are better marathon runners, while others are better sprinters.


Slow oxidative fibers Fast oxidative-glycolytic fibers Fast glycolytic fibers


Compare and Contrast the three types of muscle fibers fast glycolytic fast oxidative slow oxidative?


Fast-twitch fibers can deliver a quick burst of power.Slow-twitch fibers can maintain a contraction for a longer time! -Apex :]



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