Results 211 to 220 of about 141,442 (262)

Fiber Types in Mammalian Skeletal Muscles

Physiological Reviews, 2011
Mammalian skeletal muscle comprises different fiber types, whose identity is first established during embryonic development by intrinsic myogenic control mechanisms and is later modulated by neural and hormonal factors. The relative proportion of the different fiber types varies strikingly between species, and in humans shows significant variability ...
SCHIAFFINO, STEFANO, REGGIANI, CARLO
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Types of human intrafusal muscle fibers

Muscle & Nerve, 1979
AbstractThe histochemical and fine structural profiles of human intrafusal muscle fibers were studied. Spindles were located in freshly frozen specimens taken from biopsied normal external intercostal muscles, and periodic 10‐ and 50‐μm‐thick cross sections were processed alternately for enzyme histochemical and electron microscopic examination ...
J, Kucera, K, Dorovini-Zis
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Muscle Fiber Types

Orthopedics, 1985
ABSTRACT; Muscle fiber can be typed according to histologic, biochemical, neurophysiology, and ultrastructural differences. The relationship between muscle fiber typing and clinical areas of investigation is summarized. Genetic factors are largely responsible for the distribution of main muscle fiber types.
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Determination of Muscle Fiber Type in Rodents

Current Protocols in Mouse Biology, 2012
AbstractSkeletal muscles consist of muscle fibers that can differ in both composition and functional characteristics. These three types of muscle fibers, broadly categorized as slow, fast IIa, and fast IIb muscle fibers, express characteristic myosin heavy chain proteins and have different metabolic and enzymatic activities, which can be used as ...
Bernadett, Kalmar, Gonzalo, Blanco, Linda, Greensmith   +2 more
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Muscle Fiber Types of Human Orbicularis Oculi Muscle

Journal of Craniofacial Surgery, 2011
The aim of this study was to elucidate the muscle type of the preseptal, pretarsal, and ciliary parts of the orbicularis oculi muscle in humans using immunostaining. The eyelids of 5 Korean adult cadavers were used (3 male and 2 female cadavers; age range, 50-85 years).
Kun, Hwang, Fan, Huan, Dae Joong, Kim
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Fiber types and fiber diameters in canine respiratory muscles

Journal of Applied Physiology, 1987
In the present study, we measured fiber types and fiber diameters in canine respiratory muscles and examined regional variation within the diaphragm. Samples of eight diaphragm regions, internal intercostals, external intercostals, transversus abdominis, and triceps brachii were removed from eight adult mongrel dogs, frozen, and histochemically ...
M B, Reid, G C, Ericson, H A, Feldman, R L, Johnson   +3 more
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Muscle Fiber Types in Thoracic Erector Spinae Muscles

Clinical Orthopaedics and Related Research, 1987
Histochemical studies of the thoracic part of the erector spinae muscles in scoliosis have shown a consistently higher proportion of Type 1 fibers on the convex side. The fiber distribution of the multifidus and semispinalis muscles was studied in adolescent idiopathic scoliosis (AIS).
P, Bylund, E, Jansson, E, Dahlberg, E, Eriksson   +3 more
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Muscle fiber types.

Archives of physical medicine and rehabilitation, 1982
This review describes muscle fiber types based on their histochemical, ultrastructural, biochemical, and physiologic properties. Reportedly the speed of muscle fiber contraction is directly proportional to relative myosin ATPase activity (at pH 9.4) while fatigability relates to relative oxidative capacity. Type I fibers have low ATPase activity (at pH
G J, Herbison, M M, Jaweed, J F, Ditunno
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Muscle fiber type transformation in nemaline myopathy and congenital fiber type disproportion

Brain and Development, 1986
In a morphometric study on biopsied muscles from 5 patients with nemaline myopathy (NM) and 5 with congenital fiber type disproportion (CFTD), the common findings were relative type 1 fiber smallness, type 1 fiber predominance and occasional hypertrophic type 2 fibers.
T, Miike, Y, Ohtani, H, Tamari, T, Ishitsu, Y, Une   +4 more
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Histochemical Characteristics of Muscle Fiber Types in the Posterior Cricoarytenoid Muscle

Annals of Otology, Rhinology & Laryngology, 1981
The muscle fiber type composition of the human posterior cricoarytenoid muscle (PCA) was examined using a large battery of histochemical techniques. Staining for myosin ATPase (pH 9.9) indicated that the muscles were composed of 52% ± 11.8 SD type 1 (slowly contracting) fibers and 48% ± 11.9 SD type 2 (rapidly contracting) fibers.
L T, Malmgren, R R, Gacek
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