Adaptation to physical training in rats orally supplemented with glycerol

被引:3
作者
Andrade, Eric Francelino [1 ]
Lobato, Raquel Vieira [1 ]
de Araujo, Ticiana Vasques [1 ]
Orlando, Debora Ribeiro [1 ]
da Costa, Diego Vicente [2 ]
Silva, Vviam de Oliveira [1 ]
Rogatto, Gustavo Puggina [3 ]
Zangeronimo, Marcio Gilberto [1 ]
Rosa, Priscila Vieira [1 ]
Pereira, Luciano Jose [1 ]
机构
[1] Univ Fed Lavras, Dept Vet Med, BR-37200000 Lavras, Brazil
[2] Univ Fed Lavras, Dept Anim Sci, Lavras, Brazil
[3] Univ Fed Lavras, Dept Phys Educ, Lavras, Brazil
关键词
glycerin; nutrition; physical activity; athletes; hyper-hydration; CHAIN AMINO-ACIDS; PROLONGED EXERCISE; GROWTH-HORMONE; MUSCLE; GLUCOSE; HYPERHYDRATION; MITOCHONDRIAL; CARBOHYDRATE; PERFORMANCE; DYSFUNCTION;
D O I
10.1139/cjpp-2014-0312
中图分类号
R9 [药学];
学科分类号
100702 [药剂学];
摘要
We evaluated training adaptation and physical performance parameters in rats orally supplemented with glycerol, glucose, or saline, and submitted to moderate aerobic exercise. Thirty male rats were trained for 6 weeks and administered the supplements during the last 4 weeks of the experiment. Animals were distributed in a completely randomized factorial 2 x 3 design (with or without exercise and 3 substrates). Data were subjected to analysis of variance (ANOVA) and means were compared using the Student-Newmann-Keuls test at 5%. Among the trained animals, none of the substances caused differences in the percentages of protein, fat, or water content in the carcass. Compared with the sedentary animals, the trained animals supplemented with saline and glucose showed a higher protein percentage in the carcass. The relative mass of the heart and adrenal glands was higher in the trained animals. Glycerol improved the protein content in non-trained animals and increased the relative adrenal mass in both groups. Glycerol reduced the variation in levels of lactate and aspartate aminotransferase (AST) during the last exercise session. There was no difference between groups regarding the relative mass of the thymus and gastrocnemius or with the diameter of muscle fibers or the neutrophil-lymphocyte ratio. Supplementation with glycerol was efficient at attenuating variation in AST and lactate levels during exercise.
引用
收藏
页码:63 / 69
页数:7
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