Population
12 children (11-12 years of age)
Design
Cross-sectional
Authors
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Short-term HRV measures may be unreliable in children; leaves open need for validated protocols before research or clinical adoption.
Short-term heart rate variability measures appear unreliable at rest and during light exercise in children aged 11-12 years, demonstrating high random variation.
Winsley et al. (2003) studied this question.
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