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Attention deficit/hyperactivity disorder (ADHD) is associated with altered heart rate asymmetry
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Attention deficit/hyperactivity disorder (ADHD) is associated with complex neurocardiac integrity. We aimed to study heart rate time asymmetry as a nonlinear qualitative feature of heart rate variability indicating complexity of cardiac autonomic control at rest and in response to physiological stress (orthostasis) in children suffering from ADHD. Twenty boys with ADHD and 20 healthy age-matched boys at the age of 8 to 12 years were examined. The continuous ECG was recorded in a supine position and during postural change from lying to standing (orthostasis). Time irreversibility indices - Porta’s (P%), Guzik’s (G%) and Ehlers’ (E) - were evaluated. Our analysis showed significantly reduced heart rate asymmetry indices at rest (P%: 49.8 % vs. 52.2 %; G%: 50.2 % vs. 53.2 %; p
Title: Attention deficit/hyperactivity disorder (ADHD) is associated with altered heart rate asymmetry
Description:
Attention deficit/hyperactivity disorder (ADHD) is associated with complex neurocardiac integrity.
We aimed to study heart rate time asymmetry as a nonlinear qualitative feature of heart rate variability indicating complexity of cardiac autonomic control at rest and in response to physiological stress (orthostasis) in children suffering from ADHD.
Twenty boys with ADHD and 20 healthy age-matched boys at the age of 8 to 12 years were examined.
The continuous ECG was recorded in a supine position and during postural change from lying to standing (orthostasis).
Time irreversibility indices - Porta’s (P%), Guzik’s (G%) and Ehlers’ (E) - were evaluated.
Our analysis showed significantly reduced heart rate asymmetry indices at rest (P%: 49.
8 % vs.
52.
2 %; G%: 50.
2 % vs.
53.
2 %; p.
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