European Journal of Applied Physiology and Occupational Physiology

, Volume 59, Issue 3, pp 239–242

Effect of disuse on the ultrastructure of the achilles tendon in rats

Authors

  • Yoshinao Nakagawa
    • Department of Sports SciencesOtaru University of Commerce
  • Manabu Totsuka
    • Department of Physical FitnessNippon College of Physical Education
  • Tomoaki Sato
    • Department of Physical FitnessNippon College of Physical Education
  • Yoshiro Fukuda
    • Department of Pathology, School of MedicineJuntendo University
  • Koichi Hirota
    • Department of Physical FitnessNippon College of Physical Education
Article

DOI: 10.1007/BF02386194

Cite this article as:
Nakagawa, Y., Totsuka, M., Sato, T. et al. Europ. J. Appl. Physiol. (1989) 59: 239. doi:10.1007/BF02386194

Summary

We examined the influence exerted, through disuse of the hindlimb, on the collagen fibres of the achilles tendon in rats. With disuse the body mass decreased by 28%, and the mass of soleus muscle decreased by 20%. A decrease in the surface area and diameter was observed in the experimental group when compared to the control group. A histogram of the collagen fibres showed a decrease of the thick fibres in the experimental group. The maximum surface area of collagen fibres in the experimental group was seen to be only 43% of that of the control group. These results showed a decrease in the thickness of the collagen fibres of the achilles tendon through disuse. This seemed to suggest that resistance to tension is decreased by disuse.

Key words

Collagen fibreAchilles tendonDisuseAtrophyUltrastructure

Copyright information

© Springer-Verlag 1989