Counteracting effects of high frequency vibration on simulated weightlessness-induced atrophy of soleus muscles in rats / 西安交通大学学报(医学版)
Journal of Xi'an Jiaotong University(Medical Sciences)
;
(6)2003.
Article
Dans Chinois
| WPRIM
| ID: wpr-675543
ABSTRACT
Objective To study counteracting effects of high frequency vibration on simulated weightlessness-induced atrophy of soleus muscles in rats. Methods Female Sprague-Dawley (SD) rats were assigned randomly to one of the three groups simultaneous control (CON), simulated weightlessness (SUS), and SUS plus high frequency vibration (SUS+HFV). Soleus muscles were examined 7 days later. Sections were treated with adenosinetriphosphatase (ATPase) stain. The cross-sectional areas (CSA) of fibers, the relative proportion of types I and II were measured using Leica image analysis system. Results Compared with those of CON, the wet weight /body of soleus and the cross-sectional areas (CSA) of type I/II fibers in SUS were significantly reduced. The relative proportion of type I fibers in SUS was reduced and type II fibers increased. In SUS+HFV group, the wet weight/body of soleus and the cross-sectional areas (CSA) of type I/II fibers recovered completely. The relative proportion of type I/II fibers recovered completely. Conclusion The present study demonstrates that HFV is effective in counteracting the muscle atrophy induced by simulated weightlessness.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
langue:
Chinois
Texte intégral:
Journal of Xi'an Jiaotong University(Medical Sciences)
Année:
2003
Type:
Article
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