Cross-Sectional (n=194)
Aging is associated with a transition in short-term heart rate variability from equilibrium-like fluctuations to pendulum-type dynamics, reflecting diminished vagal activity and altered autonomic balance.
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Makowiec et al. (2015) conducted a cross-sectional in Healthy (n=194). Biological aging vs. Younger age groups was evaluated on Heart rate dynamical organization (deceleration capacity and entropy rate).
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