Muscle fibers can be found in skeletal, cardiac, and smooth muscles, ... While the exact mechanism is different between striated and smooth muscles, the basic process is similar.

Specific molecules within the muscle fibers allow striated muscles to contract rapidly, allowing us to move. The main players in this intricate process are molecules called actin and myosin.

Muscle fibers: An unexpected organization revealed A ground-breaking discovery made by researchers from the University of Liège that could change our understanding of skeletal muscle contraction.

Researchers have just made the unexpected discovery of a novel organization of muscle fibers in Parophidion vassali, a fish that lives in the Mediterranean Sea and, like many fish, uses ...

This is why slow-twitch muscle fibers are also called “red” muscles. Fast-twitch muscle fibers help you move when you need sudden and at times reflexive movements, like hopping, sprinting, and ...

SINCE the classic studies of Volkmann1 there has been abundant experimental work which shows that, following local injury, mammalian striated muscle is capable of some degree of regeneration. But ...

FOR some time X-ray diffraction techniques have been used to study living muscle in the resting state1–4. Using a modified Franks's type of small-angle camera5,6 and a Hilger microfocus X-ray ...

Muscle fibers are divided into three types: slow twitch (type I) or red fibers due to the large number of mitochondria they possess, fast twitch (type IIb) or white fibers and intermediate (type IIa).

Almost one in five people lack the protein α-actinin-3 in their muscle fibers. Researchers at Karolinska Institutet in Sweden now show that more of the skeletal muscle of these individuals ...

Researchers at the University of Cincinnati say a regulatory protein found in skeletal muscle fiber may play an important role in the body's fight or flight response when encountering stressful ...