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Fast-twitch fibers can deliver a quick burst of power. Slow-twitch fibers can maintain a contraction for a longer time.
Because of the higher energy demands of slow-twitch fibres (due to their more frequent and prolonged usage) they have a higher density of mitochondria for energy and myoglobin to provide oxygen. Meanwhile, fast-twitch fibres tend to have larger stores of glycogen so that vast quantities of energy can be provided at short notice.
What else can I help you with?
What is a contractile response of a single muscle fiber to a single muscle impulse called?
The contractile response of a single muscle fiber to a single muscle impulse is called a "twitch." A twitch consists of a brief contraction followed by relaxation, and it can be divided into three phases: the latent period, contraction phase, and relaxation phase. The characteristics of a twitch, such as its duration and force, can vary depending on the type of muscle fiber involved.
What is the term for the rapid rise and fall in force produced by a muscle fiber after a single action potential?
A twitch is the rapid rise and fall in force produced by a muscle fiber after a single action potential.
What muscle fiber type is most likely to fatigue the fastest?
Type I muscles
What is difference between myofibril and muscle fiber?
pagal i dont know
Track athletes who specialize in the 100m and 200m sprints have what type of muscle in their limbs?
fast twitch muscle fiber
What is the difference between a whole muscle and muscle fiber?
A whole muscle is the whole muscle while a muscle fiber is part of a muscle. I'm not sure if I'm correct though, so check with some different sources.
What is a twitch contraction?
A twitch contraction is a single, brief contraction of a muscle fiber in response to a stimulus. It is the smallest unit of muscle contraction and is not strong enough to produce movement of a limb.
What type of activity's are slow twitch muscle fiber best suited for?
Endurance type activities
Which type of muscle fiber has a low glycolytic capacity?
type 1 slow twitch fibres
What is the name of the muscle that works for a long time?
It is not the muscle but the muscle fiber which works for when recruited for long duration. The red muscle fiber or the slow twitch fiber gets recruited for long term stress on the muscle for example if you do bench press on heavy weight explosively for 5 reps you extensively use fast twitch fibers but if you do bench flys for 15 reps in controlled fashion, you extensively use red fibers.
What is a twitch?
a twitch is a single stimulus-contraction-relax action sequence in a muscle fiber. They can vary in duration depending on the type of muscle, it's location, internal and external enviromental conditions and other factors.
A twitch is in response to a single action potential?
Generally not as there are many parallel fibres that are part of the same circuit and some sort of coordination between the fibres are needed before a muscle twitch can be detected. This is either temporal or spatial summation.
