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Structural Changes in Skeletal Muscle Fibers after Icing or Heating on Downhill Running in Mice.
Kawashima, Masato; Iguchi, Shohei; Fujita, Naoto; Miki, Akinori; Arakawa, Takamitsu.
Afiliación
  • Kawashima M; Department of Rehabilitation Sciences, Kobe University Graduate School of Health Sciences, Kobe, Japan.
  • Iguchi S; Department of Rehabilitation Sciences, Kobe University Graduate School of Health Sciences, Kobe, Japan.
  • Fujita N; Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan.
  • Miki A; Department of Rehabilitation Sciences, Kobe University Graduate School of Health Sciences, Kobe, Japan.
  • Arakawa T; Department of Rehabilitation Sciences, Kobe University Graduate School of Health Sciences, Kobe, Japan.
Kobe J Med Sci ; 67(2): E48-E54, 2021 Sep 30.
Article en En | MEDLINE | ID: mdl-34795155
An experimental animal model that causes mild structural disorders of skeletal muscles is essential to understand general exercise-induced muscle damage. Thermal stimulations such as icing and heating are commonly used as treatments for muscle injuries in sports. We established a downhill running (DR) protocol that leads to structural muscle disorders without sarcolemmal disruption and directly compared the structural changes produced by icing and heating after DR. Male ddY mice were divided into the DR, DR plus icing (Ice), and DR plus heating (Heat) groups. All mice ran at 20 m/min, -20% grade on a treadmill for a total of 90 min (three rounds of 30 min). In the Ice and Heat groups, an ice pack and a hot pack were, respectively, applied to the exercised triceps brachii muscles for 20 min just after DR. The proportion of myofibers with structural disorders was higher in the Ice group than in the DR and Heat groups at days 1 and 7 after DR. Moreover, the structural disorder of myofibers was slightly improved in the Heat group at day 1 after DR compared with the DR group. These findings suggest that icing treatment might aggravate the structural changes after DR.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carrera / Fibras Musculares Esqueléticas / Calefacción / Hielo Tipo de estudio: Guideline / Prognostic_studies Límite: Animals Idioma: En Revista: Kobe J Med Sci Año: 2021 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Japón
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carrera / Fibras Musculares Esqueléticas / Calefacción / Hielo Tipo de estudio: Guideline / Prognostic_studies Límite: Animals Idioma: En Revista: Kobe J Med Sci Año: 2021 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Japón