Physical training of the soleus muscle and mechanical properties of the rat tibia / Influência do treinamento físico na resposta trófica do músculo sóleo e na resistência mecânica das tíbias de ratos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

Facing the physical training, the agency is subject of alterations anatomophysiological in several systems, specially the muscle and bone system. It is intended, to describe alterations of muscle trophy of the soleus and of the mechanical properties of the rat tibia submitted to physical training in rolling mat (PTRM), as well as like analyze these relations with the time of training. It was used 40 rats (20 training and 20 controls) of the lineage Wistar, coached 60 min/day, 5 days/week, during 3, 6, 9 and 12 weeks, totalling up to 8 groups of 5 each rats. The groups controls were submitted to the same experimental procedures, with exception of the application of the physical training. After the sacrifice, the muscle weave was withdrawn unilaterally, frozen and, subsequently were paintting by the technical one of Hematoxilina and Eosina, for analysis of the areas of the muscle fibers. For the analysis of the mechanical properties, 80 tibia (right and left) were measured and weighted and, subsequently, carried out the attempt of inflection in three points bending to obtain of the properties of maximum load and module of Young. After application of the test ANOVA, when compared the groups training (T) and controls (C) we found that the PTRM alters, significantly (p <0,05), and going up with the time of training, the characteristics of muscle hypertrophy and the mechanical properties of inflection of the tibia of the rats training

ASSUNTO(S)

soleus treinamento físico physical training sóleo tíbia esteira rolante rolling mat mechanical properties hipertrofia propriedades mecânicas tibia hypertrophy

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