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Medicina is published by MDPI from Volume 54 Issue 1 (2018). Articles in this Issue were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence. Articles are hosted by MDPI on mdpi.com as a courtesy and upon agreement with Lithuanian Medical Association, Lithuanian University of Health Sciences, and Vilnius University.
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Relationship between diabetes mellitus and heart rate variability in community-dwelling elders

1
Biotechnology in Health and Investigative Medicine Postgraduate Program, Gonçalo Moniz Research Center, Candeal – Salvador, BA, Brazil
2
Nursing & Health Postgraduate Program, State University of Southwest Bahia (UESB), Jequie, BA, Brazil
3
Department of Biological Sciences, State University of Southwest Bahia (UESB), Jequie, BA, Brazil
4
Collective Health Institute, Federal University of Bahia, Canela, Salvador, Brazil
5
Health Department, State University of Southwest Bahia (UESB), Jequie, BA, Brazil
*
Author to whom correspondence should be addressed.
Medicina 2017, 53(6), 375-379; https://doi.org/10.1016/j.medici.2017.12.001
Received: 13 July 2016 / Revised: 25 November 2017 / Accepted: 14 December 2017 / Published: 3 February 2018
Background and objective: Diabetes mellitus is one of the most common non-communicable diseases (NCDs) and may influence the autonomic nervous system. This study aims to analyze the autonomic control, through heart rate variability (HRV), from community- dwelling elders with (DM+) and without diabetes mellitus (DM−).
Materials and methods: This cross-sectional study, in which 205 elders (≥ 60 years old), from the urban area of Aiquara municipality gave their written consent to participate. HRV data was collected through a Polar RS800CX monitor with a 5-min initial record at rest, followed by the command to quickly stand up.
Results: The mean age was 71 years (SD, 7.32). The population was mostly made up of women 121 (59%), with low or no schooling 123 (60%), and low income 166 (81%). HRV analysis in a frequency domain showed no difference when comparing the two groups of DM + and DM−. Henceforth in a time domain, the rMSSD showed a median value of 16.09 (interquartile range, 9.91–30.68); pNN50 median of 0.79 (interquartile range, 0.00–6.62), with a statistical significance between the group of DM+ and DM−.
Conclusions: There is a difference between the studied groups principally in what concerns the time domain, which reflects the parasympathetic activity, suggesting that elders with diabetes mellitus may have a worse parasympathetic control.
Keywords: Autonomic nervous system; Heart rate; Cardiac electrophysiology; Diabetes mellitus Autonomic nervous system; Heart rate; Cardiac electrophysiology; Diabetes mellitus
MDPI and ACS Style

J.S. Ribeiro, Í.; Pereira, R.; F. Valença Neto, P.; V. Freire, I.; A. Casotti, C.; Galvão dos Reis, M. Relationship between diabetes mellitus and heart rate variability in community-dwelling elders. Medicina 2017, 53, 375-379.

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