Composição de fibras musculares esqueléticas de eqüinos jovens da raça Brasileiro de Hipismo

D’Angelis, Flora H.F.; Martins, Carla Braga; Silva, M.A.G.; Oliveira, José Victor de; Boleli, Isabel Cristina; Neto, J. C. Lacerda; Neto, A. Queiroz

doi:10.1590/s0102-09352006000400034

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…They also have particular muscle types related to the aptitude to the types of exercises to which each breed is subjected [2]. The muscle fibers of some horse breeds raised in Brazil have been characterized: Quarter Horse and Thoroughbred [3], Andalusian and Arabian horses [4,5], Crioulo [6], Mangalarga (of São Paulo state) [7], and Brasileiro de hipismo (Brazilian Sport Horse) [8]. Although the MM breed is responsible for the largest and most representative horse herd in Brazil, its muscle fibers have not been characterized yet.…”

Section: Introductionmentioning

confidence: 99%

Skeletal Muscle Fiber Composition of Untrained Mangalarga Marchador Fillies

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Fonseca

Jordão

et al. 2016

Journal of Equine Veterinary Science

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Mangalarga Marchador (MM) is the most important and numerous equine breed in Brazil. So far, no studies have been carried out on the breed's skeletal muscle composition, which is important to develop specific physical conditioning programs. To characterize the skeletal muscle fiber composition of young MM females, gluteus medius muscle biopsies were obtained from 13 fillies between 2.5-and 3-year-old using a biopsy needle at 60-mm depth. Types I, IIA, and IIX fibers were determined by the metachromatic staining method of ATPase activity in myofibers using preincubation followed by incubation in alkaline medium. Relative frequency (%F), average cross-sectional area (CSA), and relative crosssectional area (%CSA) of each muscle fiber type were determined. Considering %F, 29.5 AE 5.4% were type I, 40.3 AE 5.5% were type IIA, and 30.2 AE 5.9% were type IIX fibers. CSA of type I fibers was 2,633 AE 798 mm 2 , of type IIA was 3,407 AE 492 mm 2 , and of type IIX was 5,856 AE 1,237 mm 2 . %CSA was composed of 19.7 AE 4.9% of type I fibers, 35.4 AE 4.7% of type IIA, and 44.9 AE 7.4% of type IIX. The gluteus medius muscle of untrained MM fillies was predominantly composed of type IIA fibers, but the highest total relative area was occupied by type IIX fibers, suggesting moderate aptitude to the oxidative and glycolytic metabolisms.

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Section: Introductionmentioning

confidence: 99%

Skeletal Muscle Fiber Composition of Untrained Mangalarga Marchador Fillies

Rezende

Fonseca

Jordão

et al. 2016

Journal of Equine Veterinary Science

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Preliminary Study on Age- and Sex-Dependent Alterations in the Composition of Skeletal Muscle Fibers of Brasileiro de Hipismo Horses

D’Angelis

Silva

Albernaz

et al. 2008

Journal of Equine Veterinary Science

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Light exercise causes adaptive changes in muscles of young Brasileiro de Hipismo horses

et al. 2008

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This study aimed to determine the changes in the gluteus medius of 4 year-old Brasileiro de Hipismo (BH) horses submitted to light physical activity for 10 months. The study involved 11 horses from the "Nove de Julho" Battalion of the Military Police of São Paulo State (PM-SP RESUMO Este estudo objetivou determinar as adaptações do músculo gluteus medius de cavalos da raça Brasileiro de Hipismo (BH), que participaram de atividades físicas leves por 10 meses. Foram utilizados 11 eqüinos, machos, da raça BH e com idade de 4 anos, provenientes do "Batalhão Nove de Julho" da Polícia Militar do Estado de São (PM-SP). Realizou-se a biópsia muscular percutânea nos animais inativos e, após participarem das atividades de ronda e policiamento desenvolvido pela PM-SP por 10 meses, foram retirados fragmentos do músculo gluteus medius nas profundidades de 20mm e 60mm. Para a determinação dos tipos de fibra muscular, foram feitas análises histoquímicas por meio das técnicas de adenosina trifosfatase miofibrilar (mATPase) e nicotinamida adenina dinucleotídeo tetrazólio redutase (NADH-TR

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Composição de fibras musculares esqueléticas de eqüinos jovens da raça Brasileiro de Hipismo

Cited by 3 publications

References 6 publications

Skeletal Muscle Fiber Composition of Untrained Mangalarga Marchador Fillies

Skeletal Muscle Fiber Composition of Untrained Mangalarga Marchador Fillies

Preliminary Study on Age- and Sex-Dependent Alterations in the Composition of Skeletal Muscle Fibers of Brasileiro de Hipismo Horses

Light exercise causes adaptive changes in muscles of young Brasileiro de Hipismo horses

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