Body Mass Index May Influence Heart Rate Variability

Rodrigues, Thalys Sampaio; Quarto, L.

doi:10.5935/abc.20180201

Cited by 6 publications

(7 citation statements)

References 10 publications

(11 reference statements)

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“…Discrepancies in our results in relation to those obtained by other authors may be due to the severity and time of duration of obesity in the studied group (morbid obesity), as a positive correlation between anthropometric indices and ANS imbalance was shown [34], and /or from the fact that both hypertension and diabetes were, in this group, very well treated with oral medicines (beta blockers, ACE and Metformin), which off sets, to some extent, the increased sympathetic stimulation.…”

Section: Discussioncontrasting

confidence: 99%

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2023

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Own sources Source of support:Heart rate variability (HRV) provides valuable information in various clinical settings. Limited information exists on changes in cardiac autonomic modulation in extremely obese patients (BMI>40). The aim of this study was to investigate the infl uence of extreme (morbid) obesity and concomitant diseases on cardiovascular autonomic function. Participants of this study are 40 women and 40 men with a mean age of 47.9 diagnosed with morbid obesity (mean BMI 47.49) and hospitalized to further bariatric treatment. In 42 patients diagnosed with hypertension (treated with beta blockers and ACE inhibitors along with well controlled blood pressure), type 2 diabetes (treatment with oral drugs) also occurred. Furthermore, 46 patients were diagnosed with depression. None of the participants used antidepressants or sedative agents. A total of 80 healthy people (40 women and 40 men) with a mean age of 42.7 and with a mean BMI of 24.6 formed the control group. All patients had 24-hour ECG monitoring using the Holter method in order to evaluate the autonomic activity with time and frequency domain analysis (heart rate variability -HRV).

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Section: Discussioncontrasting

confidence: 99%

“…Studies also highlight changes in autonomic system activity among the mentioned groups [31]. The dependence of emotional regulation on autonomic processes and its relationship with regulatory metabolic processes is also described in the polyvagal theory [34].…”

Section: Discussionmentioning

confidence: 97%

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2023

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“…[ 10 ] In the clinical study by Masuda et al, [ 30 ] the systolic BP levels were significantly lower in patients after receiving FIR treatment for 45 minutes. Some studies have found that BMI may affect HRV [ 33 , 34 ] ; however in this study, the BMI between the 2 groups was not statistically significant, therefore any impact of BMI could not be assessed. Imamura et al [ 35 ] showed that FIR therapy significantly improved vascular endothelial function and increased flow-mediated endothelium-dependent dilation of the brachial artery by 4% to 5.8% in patients with coronary risk factors.…”

Section: Discussionmentioning

confidence: 59%

The effectiveness of far-infrared irradiation on foot skin surface temperature and heart rate variability in healthy adults over 50 years of age

et al. 2020

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Background: Far-infrared irradiation (FIR) is used in the medical field to improve wound healing, hemodialysis with peripheral artery occlusive disease, and osteoarthritis but seldom used in ameliorating poor lower extremity circulation. The purpose of this study was to evaluate the effect of FIR on changes in foot skin surface temperature (FSST) and autonomic nerve system (ANS) activity to evaluate its effectiveness in improving lower limb circulation. Methods: A randomized controlled study was conducted. Subjects (n = 44), all over the age of 50 years and satisfying the inclusion criteria, were randomly allocated into 2 groups. The intervention group received FIR on a lower limb for 40 minutes and the control group received no intervention. Left big toe (LBT), right big toe (RBT), left foot dorsal (LFD), right foot dorsal (RFD) surface skin temperature, autonomic nervous activity, and blood pressure were assessed. Results: The main results were skin surface temperature at the LBT increased from 30.8 ± 0.4°C to 34.8 ± 0.4°C, at RBT increased from 29.6 ± 0.4°C to 35.3 ± 0.4°C and LFD increased from 31.9 ± 0.3°C to 36.4 ± 0.4°C, RFD increased from 30.7 ± 0.3°C to 37.7 ± 0.2°C. FIR caused a significant increase of the FSST ranging in a 4°C to 7°C increase after 40 minutes irradiation ( P < .001). The ANS low-frequency (LF) and high-frequency (HF) activity showed a statistically significant increase in the FIR group ( P < .05) but not the LF/HF ratio. Conclusion: FIR significantly increased the FSST from between 4°C and 7°C after 40 minutes irradiation, which might improve lower extremity circulation and regulation of ANS activity.

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“…Many factors may affect the HRV index, such as gender, insulin resistance, BMI, hyperlipidemia, hypertension, ischemic and non-ischemic cardiomyopathy, and smoking status [26]- [28]. For example, an increased BMI can independently decrease HRV, particularly central adiposity, such as the class of hypertensives [28].…”

Section: Resultsmentioning

confidence: 99%

Development of Low-Cost ECG System for Comprehensive Monitoring Heart Function

Oktivasari¹,

Ishartati²,

Riandini³

et al. 2021

Preprint

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A simple system, a low-cost, fully automated, and design for monitoring RR interval Electrocardiography (ECG) signal described in this paper. The platform, named Simple Low-Cost Electrocardiography System (SLES), is capable of monitoring RR interval and R peaks in 3 lead standards. The system is in .exe format, so it can be easily installed on a computer. The system's goal is to design a fully integrated system for measuring a characteristic of Heart Rate Variability (HRV) parameters for various applications in heart signal research and education. The ECG signal is analog filtered and amplified and processed from analog to digital. Eventually, the ECG signal will be shown on the monitor after digital filtering. The data obtained from the ECG will accurately reflect the status of human heart health. The system has the benefits of small volume, low power consumption, low cost, and real-time operation. All design and development reports, files, and system software will be given non-commercial use online on https://github.com/oktivasari.

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Body Mass Index May Influence Heart Rate Variability

Cited by 6 publications

References 10 publications

Untitled

Untitled

The effectiveness of far-infrared irradiation on foot skin surface temperature and heart rate variability in healthy adults over 50 years of age

Development of Low-Cost ECG System for Comprehensive Monitoring Heart Function

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