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Impact of physical activity on heart rate variability in children with type 1 diabetes

Su-Ru Chen1, Yann-Jinn Lee, Hung-Wen Chiu

  • 1Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan.

Child'S Nervous System : Chns : Official Journal of the International Society for Pediatric Neurosurgery
|September 29, 2007
PubMed

Insights

Physical activity improves heart rate variability (HRV) in children with type 1 diabetes. Moderate to high activity levels normalize autonomic nervous function, unlike low activity levels.

Area of Science:

  • Pediatric Endocrinology
  • Cardiology
  • Sports Medicine

Background:

  • Type 1 diabetes in children is frequently linked to cardiovascular autonomic neuropathy.
  • Autonomic nervous system dysfunction can increase cardiovascular risk in diabetic youth.

Purpose of the Study:

  • To investigate the impact of physical activity on autonomic nervous function in children with type 1 diabetes.
  • To assess heart rate variability (HRV) as a measure of autonomic function in relation to physical activity levels.

Main Methods:

  • A cohort of 93 children with type 1 diabetes and 107 healthy controls were recruited.
  • Physical activity levels were categorized as low, moderate, or high using the Physical Activity Questionnaire for Children (PAQ-C).
  • Heart rate variability (HRV) was measured using frequency analysis in both resting and active states.

Main Results:

  • Children with type 1 diabetes exhibited significantly lower HRV compared to healthy controls at rest.
  • This difference in HRV was not observed in the active state.
  • Reduced HRV was primarily seen in diabetic children with low physical activity levels.
  • Diabetic children engaging in moderate to high physical activity showed HRV comparable to healthy controls.

Conclusions:

  • Encouraging increased physical activity intensity in children with type 1 diabetes may benefit their autonomic nervous function.
  • Regular, moderate-to-vigorous physical activity can mitigate the effects of type 1 diabetes on heart rate variability.
  • Further research is needed to address the potential risks associated with vigorous physical activity in this population.
Abstract

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