Revista Brasileira de Medicina do Esporte
Print version ISSN 1517-8692
SANTHIAGO, Vanessa; SILVA, Adelino Sanchez Ramos da; GOBATTO, Claudio Alexandre and MELLO, Maria Alice Rostom de. Physical training during nutritional recovery does not affect the muscular glucose metabolism in rats. Rev Bras Med Esporte [online]. 2006, vol.12, n.2, pp. 76-80. ISSN 1517-8692. http://dx.doi.org/10.1590/S1517-86922006000200004.
This study had the main aim to assess the food intake, the weight gain, and the muscular glucose metabolism in rats submitted to aerobic training while recovering of protean malnutrition. For this, 60 male Wistar rats were separated in two groups: normoprotean (NP) and hypoprotean (HP), according to the diet: NP (17% protein), or HP (6% protein), respectively, which was received after the ablactation (21 days) on their 90th day of life. Then, very animal received the NP diet, and they were submitted or not (trained TRA; sedentary SED) to physical training that consisted in running on a treadmill for 25 m/min., 50 min/day for 5 days a week for 30 days, compounding the NP-SED, NP-TRA, HP/NP-SED, and HP/NP-TRA groups. The glucose metabolism was assessed in slices of the soleum muscle incubated in the presence of insulin (100 mU/L), and glucose (5.5 mM containing glucose [C14], and 2-deoxyglycose [H3]). The daily food intake (g/100 g of the body weight) for the HP/NP-TRA group (24.39 ± 4.07) was larger than the HP/NP-SED group (21.62 ± 4.69). The weight gain (g) was similar in both groups HP/NP-TRA (203.80 ± 34.03) and HP/NP-SED (214.43 ± 30.54). There was no difference between both groups in relation to the following parameters: glucose uptake and oxidation, and glycogen synthesis by the soleum muscle. Thus, it can be concluded that the aerobic training did not have any impact on the nutritional recovery, as there was no metabolic or somatic differences among recovered animals in the presence or absence of the training.
Keywords : Training; Protean malnutrition; Nutritional recovery.