Cardiac autonomic activity, endothelial function and physical fitness in type 2 diabetic patients

Author:

Padovani CauêORCID,Arruda Regiane Maria da CostaORCID,Phillips ShaneORCID,Sampaio Luciana Maria MalosáORCID

Abstract

Objective: To investigate the association between cardiac autonomic activity, endothelial function, and physical fitness in patients with type 2 diabetes mellitus (T2DM). Methods: Twenty-seven patients with T2DM were studied, with a mean age of 57 ± 9 years and a mean disease duration of 7.4 ± 5 years. The assessment of physical fitness was performed using the Shuttle Walking Test (SWT), cardiac autonomic modulation by heart rate variability (HRV), and endothelial function was assessed by flow-mediated dilation (FMD) of the brachial artery through ultrasound imaging. Results: The main finding of this study was that some HRV indices (SDNN, RMSSD, and HF) were significantly correlated with endothelial function in individuals with T2DM, with R values between 0.51 and 0.57 (p < 0, 05), for all relationships. Additionally, an association was found between the distance covered in the SWT and the basal diameter of the brachial artery (R = 0.59; p = 0.01). Conclusion: Our data demonstrate that some HRV indices are associated with DMF, indicating an interaction between these two systems. Furthermore, our findings suggest a correlation between physical fitness and endothelial function in individuals with T2DM.

Publisher

Revista Ciencias em Saude

Subject

General Medicine

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