Effect of high-intensity running in rectus femoris muscle fiber in rats

Pilar Dı́az-Herrera; José M Garcı́a-Castellano; Ana Torres; José A Morcuende; José A.L Calbet; René Sarrat

doi:10.1016/S0736-0266(00)00031-0

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Effect of high-intensity running in rectus femoris muscle fiber in rats

Journal article

Open access

Peer reviewed

Effect of high-intensity running in rectus femoris muscle fiber in rats

Pilar Dı́az-Herrera, José M Garcı́a-Castellano, Ana Torres, José A Morcuende, José A.L Calbet and René Sarrat

Journal of orthopaedic research, Vol.19(2), pp.229-232

2001

DOI: 10.1016/S0736-0266(00)00031-0

PMID: 11347695

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Abstract

The effect of a 12-week high-intensity intermittent exercise program on fiber type composition and the oxidative capacity of rectus femoris skeletal muscle from 20 male Wistar rats (Trained, n=10; Sedentary, n=10) was histochemically determined. The training exercise program was developed in a motorized treadmill. It consisted of four running bouts of 2 min duration at 48 m/min, alternated with recovery intervals of 4 min. Training increased relative cross-sectional area of oxidative fibers (I, IIA, IIX) and decreased the same parameter in type IIB non-oxidative fibers ( P<0.001). Our results suggest that this type of strength exercise program is enough to induce changes in muscle fiber composition. This opens a possibility to use this kind of exercise in preventing and treating muscle atrophy.

Details

Title: Subtitle: Effect of high-intensity running in rectus femoris muscle fiber in rats
Creators: Pilar Dı́az-Herrera - Departamento de Morfologı́a, Facultad de Medicina, Universidad de Las Palmas de Gran Canaria, Spain
José M Garcı́a-Castellano - Departamento de Morfologı́a, Facultad de Medicina, Universidad de Las Palmas de Gran Canaria, Spain
Ana Torres - Departamento de Ciencias Morfológicas, Facultad de Medicina, Universidad de Zaragoza, Spain
José A Morcuende - Department of Orthopedic Surgery, Iowa Hospital & Clinics, Iowa City, IA, USA
José A.L Calbet - Departamento de Educación Fı́sica, Facultad de Ciencias de la Actividad Física y del Deporte, Universidad de Las Palmas de Gran Canaria, Spain
René Sarrat - Departamento de Ciencias Morfológicas, Facultad de Medicina, Universidad de Zaragoza, Spain
Resource Type: Journal article
Publication Details: Journal of orthopaedic research, Vol.19(2), pp.229-232
DOI: 10.1016/S0736-0266(00)00031-0
PMID: 11347695
NLM abbreviation: J Orthop Res
ISSN: 0736-0266
eISSN: 1554-527X
Publisher: Elsevier Ltd
Language: English
Date published: 2001
Academic Unit: Stead Family Department of Pediatrics; Orthopedics and Rehabilitation
Record Identifier: 9984040565502771

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