Metabolic response to acute physical exercise in wistar rats
DOI:
https://doi.org/10.5016/1062Keywords:
Natação. Glicemia. Exercício agudo. Ratos e respostas metabólicas.Abstract
The aim of this study was to investigate metabolic and hormonal responses to acute swimming exercise in sedentary rats. Male Wistar rats were separated into 2 groups: sedentary rest (SR) and sedentary submitted to acute exercise (SA). The rats of SA group performed one session of swimming, without overload during 40 minutes. The animals were sacrificed in both rest and post exercise conditions. Blood samples and tissues were collected for analysis. The glycogen in liver (SR=8,79±0,45; SA=5,06±0,36mg/100g), heart (SR=0,30±0,05; SA=0,09±0,02mg/100g), muscle (SR=0,71±0,12; SA=0,26±0,06mg/100g) showed lower in SA group, as well as the serum insulin (SR=16,63±3,16; SA=8,63±3,80μUI/ml). The glucose (SR=98,3±7,99; SA=114,7±9,6363mg/dl), FFA (SR=269,91±22,68; SA=675,12±98,2mEq/l), cholesterol (SR=65,9±6,42; SA=80,51±16,11mg/dl) and serum corticosterone (SR=138,79±61,83; SA=665,66±176,58ng/dl) were higher in SA group. The values of protein and DNA in liver and muscle were not different. In conclusion, acute aerobic exercise increases the energetic substrate depletion, serum corticosterone whereas it decreases the serum insulin, maintaining a normal glucose levels in exercise.Downloads
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