섬유

effects of age on contractile, morphometrical and enzymehistochemical properties of the rat soleus muscle

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 311
the present study was undertaken with the aim of elucidating the mechanisms behind the age-related decrease in maximum force, the decreased speed of contraction and the decrease in fast-twitch muscle fibre number in old rat soleus muscle. this muscle was studied with regard to contractile, morphometrical and enzyme-histochemical properties in 2- to 25-month-old male wistar rats. the results of the present study indicate that the age-related decline in tetanus force is due to a quantitative loss of contractile material. secondly, the decreased speed of contraction with age is primarily due to a qualitative change in mechanical properties of remaining contractile material rather than to a selective loss of fast-twitch fibres (edited author abstract)
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