SciELO - Scientific Electronic Library Online

vol.14 issue2Influence of the range of motion (rom) limitation on the shoulder flexibility improvement after a six-week trainingAgreement between self-reported weight and height measurements for the diagnosis of the nutritional status of older residents in southern Brazil author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista Brasileira de Medicina do Esporte

Print version ISSN 1517-8692On-line version ISSN 1806-9940


KONNO, Evandro Augusto Boian et al. Remobilization by cycle static stretching in soleus muscle of rats immobilized in shortening position. Rev Bras Med Esporte [online]. 2008, vol.14, n.2, pp.122-125. ISSN 1517-8692.

Muscle fibers have great plastic properties, responding to different stimuli with their weight increase or reduction, length and serial sarcomere number. The aim of this study was to analyze the static passive stretching in 3 daily bouts of 30 s and the free remobilization effects for two weeks, in the soleus muscle of rats immobilized in shortening position. For this purpose, 12 rats (Wistar) were used and divided in 2 groups: G1 (n=6) - left soleus muscle (LSM) immobilized and free in the cage (GIF); G2 (n=6) - LSM immobilized and stretched daily (GIS). The variations found between the LSM and RSM (right) of each group have been compared. The variables were: soleus muscle weight, length, serial sarcomeres number and sarcomere length. The results comparing LSM with RSM were: muscle weight: GIF=-23.16%, (p=0.0007), GIS-32.43% (p=0.0008); muscle length: GIF=-5.47% (p=0.0120); GIS=-9.99% (p=0.0034); serial sarcomere number: GIF=-15.42% (p=0.0047); GIS=-8.08% (p=0.0008); sarcomere length: GIF=11.16% (p=0.0142); GIS=-1.92% (p=0.3783). It can be concluded through these results that neither the stretching nor the free remobilization promotes restoration in the skeletal muscles structure submitted to prolonged immobilization.

Keywords : immobilization; remobilization; muscle stretching.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License