Key result
The multifractal complexity of heart rate variability varied significantly with the fractal correlation between heart rate and brain data during a head-up-tilt maneuver.
Population
11 young healthy subjects
Comparison
Head-up-tilt, upright body position for ~40 min vs Supine (SUP) body position for ~40 min
Design
Cross-sectional
Authors
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Posture-dependent brain-heart fractal coupling seen in healthy subjects; leaves open clinical relevance and requires larger validation studies.
Observational (n=11)
No
Effect estimate: ρ = -0.80
p-value: p=0.003
There is a central-autonomic fractal correlation between brain and heart rate fluctuations, which differs between supine and upright positions.
Lin et al. (2012) conducted an observational in Healthy (n=11). Passive head-up-tilt (HUT) maneuver vs. Supine position was evaluated on Central-autonomic fractal correlation (CAFC) between heart rate and brain data (ρ = -0.80, p=0.003). The multifractal complexity of heart rate variability varied significantly with the fractal correlation between heart rate and brain data during a head-up-tilt maneuver.
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