Why the study?
Does physical activity and body composition affect heart rate variability independently of heart rate decline in young children?
Does physical activity and body composition affect heart rate variability independently of heart rate decline in young children?
In young children, heart rate variability parameters decrease with increasing age when adjusted for heart rate, highlighting the importance of accounting for intrinsic heart rate in pediatric HRV studies.
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HR adjustment needed for pediatric HRV interpretation; leaves open independent effects of age and growth.
Herzig et al. (2017) studied this question.
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