Assessment of autonomic function by long-term heart rate variability: Beyond the classical framework of LF and HF measurements

J Hayano, E Yuda - Journal of physiological anthropology, 2021 - Springer
In the assessment of autonomic function by heart rate variability (HRV), the framework that
the power of high-frequency component or its surrogate indices reflects parasympathetic …

Heart rate variability analyses in Parkinson's disease: A systematic review and meta-analysis

KG Heimrich, T Lehmann, P Schlattmann, T Prell - Brain Sciences, 2021 - mdpi.com
Recent evidence suggests that the vagus nerve and autonomic dysfunction play an
important role in the pathogenesis of Parkinson's disease. Using heart rate variability …

Multifractal foundations of biomarker discovery for heart disease and stroke

M Mangalam, A Sadri, J Hayano, E Watanabe… - Scientific reports, 2023 - nature.com
Any reliable biomarker has to be specific, generalizable, and reproducible across
individuals and contexts. The exact values of such a biomarker must represent similar health …

Trends in technology usage for Parkinson's disease assessment: a systematic review

R Deb, G Bhat, S An, H Shill, UY Ogras - MedRxiv, 2021 - medrxiv.org
Parkinson's disease (PD) is a neurological disorder with complicated and disabling motor
and non-motor symptoms. The complexity of PD pathology is amplified further due to its …

Survival predictors of heart rate variability after myocardial infarction with and without low left ventricular ejection fraction

J Hayano, N Ueda, M Kisohara, E Yuda… - Frontiers in …, 2021 - frontiersin.org
Background Heart rate variability (HRV) and heart rate (HR) dynamics are used to predict
the survival probability of patients after acute myocardial infarction (AMI), but the association …

Multiscale analysis of intensive longitudinal biomedical signals and its clinical applications

T Nakamura, K Kiyono, H Wendt, P Abry… - Proceedings of the …, 2016 - ieeexplore.ieee.org
Recent advances in wearable and/or biomedical sensing technologies have made it
possible to record very long-term, continuous biomedical signals, referred to as biomedical …

Multifractality distinguishes reactive from proactive cascades in postural control

DG Kelty-Stephen, MP Furmanek… - Chaos, Solitons & Fractals, 2021 - Elsevier
Intermittency is a flexible control process entailing context-sensitive engagement with task
constraints. The present work aims to situate the intermittency of dexterous behavior …

Visual effort moderates postural cascade dynamics

M Mangalam, IC Lee, KM Newell… - Neuroscience Letters, 2021 - Elsevier
Standing still and focusing on a visible target in front of us is a preamble to many
coordinated behaviors (eg, reaching an object). Hiding behind its apparent simplicity is a …

Additivity suppresses multifractal nonlinearity due to multiplicative cascade dynamics

DG Kelty-Stephen, M Mangalam - Physica A: Statistical Mechanics and its …, 2024 - Elsevier
An enduring controversy in biological and psychological sciences has centered on the
tension between the role of random multiplicative cascade processes and the sometimes …

Complexity Variability Assessment of Nonlinear Time-Varying Cardiovascular Control

G Valenza, L Citi, RG Garcia, JN Taylor, N Toschi… - Scientific reports, 2017 - nature.com
The application of complex systems theory to physiology and medicine has provided
meaningful information about the nonlinear aspects underlying the dynamics of a wide …