Effects of twelve weeks of aerobic training, resistance training or combination of both trainings on the levels of blood sugar, HbA1c and cardiovascular risk factors in women with type 2 diabetes
Introduction and purpose: Diabetes mellitus is a metabolic disease that is brought about by either insufficient production of insulin or the inability of the body to respond to the insulin formed within the system. The aim of this study was to exam the influence of 12 weeks of aerobic training, resistance training, or a combination of both on the level of blood sugar, hemoglobin A1C (HbA1c)) and cardiovascular risk factors in women diagnosed with type 2 diabetes.
Materials and Methods: In this semi experimental survey, 45 women diagnosed with type 2 diabetes at Nader Kazemi Clinic who had the required qualifications were chosen for the survey and were divided into four groups including aerobic training group (11), resistance training group (11) combination exercise group (12) and control group (11). Aerobic, resistance and combination groups performed the exercises for 12 weeks under the supervision of skillful trainers. Fasting blood samples were obtained from the subjects prior to breakfast at the beginning and the end of the study to measure blood sugar, hemoglobin A1 c, total cholesterol, triglyceride HDL and LDL. To display central inclination index and distribution indices, descriptive statistics and Wilcoxson non parametric tests were used to examine the data distribution type and to compare the averages of the data prior to & after the test in each group. Two-way ANOVA test (P<0/05) was used for statistical analyses.
Results: In the combined training group, there was a significant decrease ( p<0.1) in the level of HbA1c at the end of the study, while the resistant training group demonstrated a significant decrease in total cholesterol ( p< 0.05) and LDL ( p< 0.01) and an increase in HDL (p<0.05) at the end of the training period . The control group showed an increase in fasting blood glucose level compared with the other three groups ( p<0.01). In all of the training groups, BMI decreased significantly (p<0/05) and the triglyceride level did not change (p>0/05).
CONCLUSIONS: Based on the results obtained, combination exercises decreased blood Hb A1c level, and resistance training diminished serum total cholesterol, and LDL levels and elevated the HDL level. Therefore, it appears that different types of exercise may be effective in controlling type 2diabetes.
Key words: aerobic training, resistance training, combination training, hemoglobin A1C.
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