Evaluating Exercise Capacity and Heart Rate Recovery in Diabetic Type II Patients

Document Type : Original Article


1 Isfahan Clinical Toxicology Research Center, Isfahan University of Medical Sciences, Iran

2 MD, General Practitioner, Hormozgan University of Medical Sciences, Bandarabass, Iran,

3 Sport sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

4 Clinical Research development center, Najafabad branch,Islamic Azad University, Najafabad, Iran

5 Health Information Technology Department, Ferdows school of paramedical and health, Birjand University of Medical Sciences, Birjand, Iran.


Introduction: Type 2 diabetes is a chronic disease with an increase in microvascular risks such as retinopathy and neuropathy. According to cardiac neuropathy in diabetic patients and the high prevalence of diabetes, the current study is designed to evaluate heart rate recovery and exercise capacity in diabetic versus healthy individuals. . Methods: This clinical study was performed on 228 patients. The age, sex, weight, BMI, educational level, duration of disease, history of other medical disease and smoking, TG, LDL, CHOL, HDL, FBS, SBP, and DBP were listed in the checklist and were evaluated later. The SPSS software was used to analyze data statistically using t-test, Mann-Whitney, and Chi-Square tests. P>0.05 was considered significant.  Results: Mean Heart Rate Recovery, in the first mean, was 16.35 ± 10.56 in the study group and was 25.9 ± 13 in the control group (P=0.001). The mean heart rate during rest in the study group was 84.39 ± 13.5 and in the control group was 81.44 ± 14.27 beat/min (P=0.110). The mean Heart Rate Reserve in the study group was 48.43 ± 18.87 and in the control group was 57.8 ± 24.17 (P=0.001). Negative Chronotropic Incompetence was seen in 10 patients and 19 healthy individuals (P=0.048).  Conclusion: According to our results and previous studies, heart rate recovery in diabetic patients is significantly less than in healthy individuals. The risk of cardiovascular disease in these patients is higher versus healthy individuals, and according to this fact, they need periodic visits.


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