Relationship of Levels of Glycemia Capilar with the Maximum VO2 of Diabetic Patients Type 2 Submitted to the Ergometric Test

Diabetes Mellitus is a group of metabolic diseases characterized by hyperglycemia resulting from defects in insulin secretion and / or action. The low physical capacity obtained by the measurement of VO2max may be related to the development of metabolic diseases. The objective of the present study was to analyze the relationship of capillary glycemia levels on the maximal VO2 of type 2 diabetic patients submitted to the ergometric test. Using a sample calculation, 60 type 2 diabetic patients aged 50 to 75 years were recruited from the Pernambuco Cardiovascular Emergency Room. The participants were divided into three groups: the Diabetic Group with capillary glycemia <100 mg/dL (DG <100) (n = 14), the Diabetic Group with capillary glycemia between 100 mg/dL and 200 mg/dL (DG 100-200) (n = 26) and the Diabetic Group with capillary glycemia >200 mg/dL (GD> 200) (n = 20). Exercise Test (ET), which was performed at a mean temperature between 18ºC and 22ºC in the morning, under electrocardiographic monitoring throughout the TE using the ERGO PC 13.0® system, using Modified Bruce Protocol. The nonparametric Kruskal-Wallis test was used for intergroup analysis and the Pearson Chi-square test for association between variables. In the correlation of capillary glycemia with VO2max the DG>200 presented a strong negative correlation with the variable of VO2max (blood glucose = 265,9 ± 53,7 vs VO2max.= 23,1± 7,3 r= -0,76). Elevated capillary glycemia levels correlate with the low VO2max values for this sample of type 2 diabetic patients.