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Diabetes mellitus is a chronic metabolic condition that causes persistent hyperglycemia due to insulin action or secretion. Regular physical exercise has been reported to improve glycemia and lipid profile in diabetes. However, literature is scare on the effects of swimming exercise on the serum levels of adiponectin and glucose 6 phosphatase in Wister rats with diabetes This study therefore, investigated the effects of swimming exercise on adiponectin, glucose 6-phosphatase and lipid profile in male Wistar rats with streptozotocin-induced diabetes. This study was carried out on 25 male Wistar rats grouped into five groups (n=5/group): group 1=control, group 2=diabetes, group 3=diabetes treated with metformin, group 4=non-diabetes and swimming exercise, group 5=diabetes and swimming exercise. Animals in groups 2, 3, and 5 were induced with Streptozotocin (STZ) 50 mg/kg intraperitoneally. After 72 hours of diabetes induction, animals with a blood glucose level of ≥ 200 mg/dl were confirmed diabetics and used for the study. Group 3 animals were treated with metformin 200mg/kg giving orally for 28 days. Animals in groups 4 and 5 were subjected to swimming exercises for 5-10 minutes during the first week until they could swim freely for 30 minutes. The animals were then allowed to swim 5 days per week for 28 days. Swimming exercise for 28 days significantly reduced blood glucose, glucose-6-phosphatase (G6Ppase), Lactate dehydrogenase (LDH), Total cholesterol (TC), and Low-density lipoprotein (LDL) levels but caused significant increase in adiponectin and High-density lipoprotein (HDL) levels in diabetic rats compared with untreated diabetic rats. There was a significant decrease in triglyceride (TG) of diabetic animals caused by swimming for 28 days. This study demonstrated that swimming exercise for 28 days may help lower glucose level and improve insulin sensitivity by increasing adiponectin level and decreasing G6Pase activity in diabetic rats. Also, swimming exercise may help improve lipid profile in diabetic rats.
Olufunmilayo et al. (Tue,) studied this question.