Autonomic nervous system functions in obese children

Yakıncı, Cengiz; Müngen, Bülent; Karabi̇ber, Hamza; Tayfun, Meltem; Evereklioğlu, Cem

doi:10.1016/s0387-7604(00)00094-2

Cited by 52 publications

(62 citation statements)

References 3 publications

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“…Decreased parasympathetic activity in obese children was also reported by other authors 16,19,21 . Such reduction is associated with increased risk for morbidity and mortality from all causes and development of several risk factors 30 .…”

Section: Discussionsupporting

confidence: 82%

“…Sekine et al 18 , analyzing HRV indexes in the frequency domain, suggest that they have more sympathetic activity and less parasympathetic activity as compared with eutrophic children, while Nagai et al 19 and Nagai & Moritani 20 observed both sympathetic and parasympathetic activities decreased in obese children. Yakinci et al 21 , using autonomic function tests, observed normal sympathetic activity and parasympathetic underactivity, and more recently, Kaufman et al 16 observed increase in LF/HF ratio and decreased HF index. Pascoal et al 22 found higher cardiac tone in the standing position when compared obese children with eutrophic children.…”

mentioning

confidence: 97%

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Índices geométricos de variabilidade da frequência cardíaca em crianças obesas e eutróficas

Vanderlei

Pastre

Freitas

et al. 2010

Arq. Bras. Cardiol.

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Section: Discussionsupporting

confidence: 82%

mentioning

confidence: 97%

Índices geométricos de variabilidade da frequência cardíaca em crianças obesas e eutróficas

Vanderlei

Pastre

Freitas

et al. 2010

Arq. Bras. Cardiol.

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show abstract

“…[15] In another study, obese children possessed a decreased sympathetic and parasympathetic activity. [16,17] However, our findings are inconsistent with those of Laederach-Hofmann et al, [4] who found no overstimulation with increase in weight, but on the contrary observed a depression in the sympathetic and parasympathetic activity. Another study by Sheema and Malipatil [18] using heart rate variability test demonstrated increased sympathetic activity in obese individuals.…”

Section: Discussioncontrasting

confidence: 99%

A study to access impairment of autonomic nervous system in obesity

Mujeeb¹

2017

Natl J Physiol Pharm Pharmacol

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Background: Obesity which is itself a significant health hazard is also associated with dysfunctioning of autonomic nervous system (ANS). Aims and Objective: This study was conducted to assess autonomic dysfunction in obese and compare it with age-matched controls. Materials and Methods: The study group consisted of 55 healthy obese people (median 35 ± 6.0 years of age) and the control group consisted of 55 healthy non-obese people (median 31 ± 5.2 years). Six non-invasive autonomic function tests were performed out of which four were based mainly on parasympathetic control heart rate response to standing (30:15 ratio). The standing to lying ratio, Valsalva ratio, and the resting heart rate and the other two tests were based on sympathetic control (isometric handgrip exercise test systolic blood pressure (SBP) and cold-pressor test SBP, and diastolic BP). Results: Present study showed significantly lower values (P ≤ 0.005) for the parasympathetic tests in the study group when compared to controls indicating impaired parasympathetic function. Similarly, the findings of sympathetic tests in study groups were significantly less (P ≤ 0.005) as compared to the controls indicating impaired sympathetic function. Conclusion: Thus, in obesity activity of both sympathetic as well as parasympathetic divisions of ANS (autonomic nervous system) are affected, which may be the cause of various complications associated with obesity.

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“…36 Further, Yakinci et al performed autonomic function tests; sympathetic (orthostatic test) or parasympathetic (Valsalva ratio, 30/15 ratio and HR responses to deep breathing) on obese children and found normal sympathetic activity and parasympathetic hypo activity. 37 Thus, the different findings in sympathetic activity of obese among studies are probably due to difference in age group or duration of obesity.…”

Section: Discussionmentioning

confidence: 98%