Study On The Effect Of Certain Amount Of Exercise On Blood Glucose Level Of Middle Aged T2DM Patients Using CGMS

Objective: The exercise treatment is one of the basic methods of diabetes treatment. CGMS can continuously monitor subcutaneous glucose level for 3 days. We carried out the study to observe the effect of a certain amount of exercise on the blood glucose level using continuous glucose monitoring system (CGMS) in T2DM patients.Methods: We studied thirteen T2DM patients, averagely 49.8±13.1 years old,who were admitted to hospital from October ,2005 to March 2006 and submitted to CGMS .The first 24h after CGMS was the control day and the next 24h was the exercise day. Subjects carried out the moderate exercise bout with an intensity of maximal oxygen uptake of 60% consuming 90 thousand calories on the exercise day at 2h after breakfast and 2h before supper. The average speed of running on the egometer was 4～6km/h and the average time it took was 15.4±2.8min. We analyzed the blood glucose values at different time before and after the exercise bout, and compared them with the corresponding values on the control day by paired t test. Results: The 13 patients could all resist the exercise. On the whole, the averagedecreases of SMBG and CGMSBG are 0.75±1.25mmol/L and 0.89±1.27mmol/Lrespectively. There is statistical significant decrease of both SMBG and CGMSBG after exercise. There is no statistical significance between the difference calculated by the CGMSBG of pre-exercise and various time point after exercise(p>0.05) compared with those of the control day.Conclusion: There is statistical significant decrease of both SMBG and CGMSBG after 90K calories exercise. The blood glucose level may rise or decline after a bout of exercise, and the change may depend not only by the exercise but also by the naturally...