Korean J Psychosom Med.  2011 Dec;19(2):74-82.

Heart Rate Variability and Parenting Stress Index in Children with Attention-Deficit/Hyperactivity Disorder

Affiliations
  • 1Department of Psychiatry, College of Medicine, Korea University Guro Hospital, Seoul, Korea. npboard@hanmail.net
  • 2Department of Psychiatry, College of Medicine, Korea University Ansan Hospital, Seoul, Korea.

Abstract


OBJECTIVE
The aim of this study was to evaluate the relationship between sustained attention deficits in Attention-Deficit/Hyperactivity Disorder(ADHD) children and short-term Heart Rate Variability(HRV) parameters. In addition, we evaluate the relationship between The ADHD rating scale(ARS), the computerized ADHD diagnostic system(ADS) and Parenting stress index-short form(PSI-SF).
METHODS
This study was performed in the department of children and Adolescent psychiatry, Korea university Guro hospital from august 2008 to January 2009. We evaluated HRV parameters by short-term recordings of 5 minutes. K-ARS and ADS are used for screening and identifying ADHD children. Intelligence was measured using Korean educational Developmental Institute-wechsler Intelligence Scale for Children. The caregivers Complete Parenting Stress Index scale for evaluation parent stress.
RESULTS
The low frequency(LF) was significantly correlated with response variability of ADS. However, the other variables of ARS and ADS were not significantly correlated with LF. Hyperactivity subscale of ARS was significantly correlated with parental distress subscale and difficult child subscale of PSI-SF and inattention subscale of ARS was also significantly correlated with dysfunctional interaction and difficult child subscale of PSI-SF.
CONCLUSION
The LF, 0.10-Hz component of HRV is known to measure effort allocation. This study shows that the LF component of HRV is significantly correlated with the response variability of ADS. This means that more severe symptoms of ADHD were correlated with the increase in the LF that means decreased effort allocation. These results also support the clinical usability of HRV in the assessment of ADHD. Furthermore, PSI-SF is correlated with hyperactivity and inattention variables of ARS.

Keyword

Attention-Deficit/Hyperactivity Disorder; Heart rate variability; Effort allocation; Parenting stress index

MeSH Terms

Adolescent
Adolescent Psychiatry
Caregivers
Child
Heart
Heart Rate
Humans
Intelligence
Korea
Mass Screening
Parenting
Parents
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