Overweight and reduced heart rate variability in British children: An exploratory study

Samantha Birch, Michael J. Duncan, C. Franklin

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    ObjectiveTo investigate the associations between heart rate variability (HRV) and weight status in children.MethodFollowing ethics approval, 182 children (87 males, 95 females) aged between 6 and 11 years old (Mean (SD) age 9.1 (1.4) years) were assessed for height and body mass from which body mass index (BMI, kg/m2) was calculated. Data were collected in Central England, March–June 2011. Resting HRV was assessed in the supine position. Time domain (RMSSD and pNN50) and frequency domain (HF and LF power (ms2), LF/HF ratio) measures of HRV were calculated. Pearson correlations were used to assess the associations between BMI and HRV parameters. Differences in HRV parameters according to gender or weight status were analysed using t-tests.ResultsBMI was significantly and inversely related to RMSSD (r = − 0.23, p = 0.001) and pNN50 (r = 0.20, p = 0.008) but not frequency domain measures of HRV (p > 0.05). Overweight/obese children demonstrated lower HF power compared to normal weight children (p = 0.02). RMSSD and pNN50 were significantly lower in overweight/obese children compared to normal weight children (p <0.05). Age was associated with changes in Mean R–R and RMSSD (p <0.05).ConclusionThis exploratory study suggests that HRV is reduced in overweight/obese children.
    Original languageEnglish
    Pages (from-to)432-432
    JournalPreventive Medicine
    Volume55
    Issue number5
    DOIs
    Publication statusPublished - Nov 2012

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    Heart Rate
    Weights and Measures
    Body Height
    Supine Position
    Ethics
    England
    Body Mass Index

    Bibliographical note

    The full text is not available from the repository.

    Keywords

    • obesity
    • cardiac
    • autonomic
    • paediatric

    Cite this

    Overweight and reduced heart rate variability in British children: An exploratory study. / Birch, Samantha; Duncan, Michael J.; Franklin, C.

    In: Preventive Medicine, Vol. 55, No. 5, 11.2012, p. 432-432.

    Research output: Contribution to journalArticle

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    N2 - ObjectiveTo investigate the associations between heart rate variability (HRV) and weight status in children.MethodFollowing ethics approval, 182 children (87 males, 95 females) aged between 6 and 11 years old (Mean (SD) age 9.1 (1.4) years) were assessed for height and body mass from which body mass index (BMI, kg/m2) was calculated. Data were collected in Central England, March–June 2011. Resting HRV was assessed in the supine position. Time domain (RMSSD and pNN50) and frequency domain (HF and LF power (ms2), LF/HF ratio) measures of HRV were calculated. Pearson correlations were used to assess the associations between BMI and HRV parameters. Differences in HRV parameters according to gender or weight status were analysed using t-tests.ResultsBMI was significantly and inversely related to RMSSD (r = − 0.23, p = 0.001) and pNN50 (r = 0.20, p = 0.008) but not frequency domain measures of HRV (p > 0.05). Overweight/obese children demonstrated lower HF power compared to normal weight children (p = 0.02). RMSSD and pNN50 were significantly lower in overweight/obese children compared to normal weight children (p <0.05). Age was associated with changes in Mean R–R and RMSSD (p <0.05).ConclusionThis exploratory study suggests that HRV is reduced in overweight/obese children.

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