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PhysioBank, PhysioToolkit, and PhysioNet: components of a new research resource for complex physiologic signals.
The newly inaugurated Research Resource for Complex Physiologic Signals, which was created under the auspices of the National Center for Research Resources, is intended to stimulate current research and new investigations in the study of cardiovascular and other complex biomedical signals.
Fractal dynamics in physiology: Alterations with disease and aging
- A. Goldberger, L. Amaral, Jeffrey M. Hausdorff, P. Ivanov, Chung-Kang Peng, H. Stanley
- EngineeringProceedings of the National Academy of Sciences…
- 19 February 2002
Application of fractal analysis may provide new approaches to assessing cardiac risk and forecasting sudden cardiac death, as well as to monitoring the aging process, and similar approaches show promise in assessing other regulatory systems, such as human gait control in health and disease.
Gait variability and fall risk in community-living older adults: a 1-year prospective study.
- Jeffrey M. Hausdorff, D. Rios, H. Edelberg
- Medicine, PsychologyArchives of physical medicine and rehabilitation
- 1 August 2001
Findings show both the feasibility of obtaining stride-to-stride measures of gait timing in the ambulatory setting and the potential use ofgait variability measures in augmenting the prospective evaluation of fall risk in community-living older adults.
The role of executive function and attention in gait
- G. Yogev-Seligmann, Jeffrey M. Hausdorff, Nir Giladi
- Biology, PsychologyMovement disorders : official journal of the…
- 15 February 2008
The variety of gait disorders that may be associated with different aspects of executive function, and the changes occurring in executive function as a result of aging and disease as well the potential impact of these changes on gait are described.
Altered fractal dynamics of gait: reduced stride-interval correlations with aging and Huntington's disease.
- Jeffrey M. Hausdorff, S. Mitchell, A. Goldberger
- Psychology, MedicineJournal of applied physiology
It is demonstrated that strike-interval fluctuations are more random (i.e., less correlated) in elderly subjects and in subjects with Huntington's disease, which are apparently associated with changes in central nervous system control.
Gait dynamics, fractals and falls: finding meaning in the stride-to-stride fluctuations of human walking.
- Jeffrey M. Hausdorff
- PsychologyHuman movement science
- 1 August 2007
Wearable Assistant for Parkinson’s Disease Patients With the Freezing of Gait Symptom
- M. Bächlin, M. Plotnik, G. Tröster
- PsychologyIEEE Transactions on Information Technology in…
- 1 March 2010
A wearable assistant for Parkinson's disease (PD) patients with the freezing of gait (FOG) symptom that uses on-body acceleration sensors to measure the patients' movements and provides online assistive feedback for PD patients when they experienced FOG.
Is walking a random walk? Evidence for long-range correlations in stride interval of human gait.
- Jeffrey M. Hausdorff, Chung-Kang Peng, Z. Ladin, J. Wei, A. Goldberger
- PhysicsJournal of applied physiology
It is demonstrated that conventional models of gait generation fail to reproduce the observed scaling behavior and a new type of central pattern generator model is introduced that successfully accounts for the experimentally observed long-range correlations.
Gait variability: methods, modeling and meaning
- Jeffrey M. Hausdorff
- Biology, PsychologyJournal of NeuroEngineering and Rehabilitation
- 20 July 2005
Nine reports on the results of recent investigations into gait variability provide new insights into the factors that regulate the stride-to-stride fluctuations in walking and pave the way for expanded research into the control of gait and the practical application of measures of gact variability in the clinical setting.
Long-range anticorrelations and non-Gaussian behavior of the heartbeat.
- Peng C-K, J. Mietus, Jeffrey M. Hausdorff, S. Havlin, H. Stanley, A. Goldberger
- PhysicsPhysical review letters
- 1 March 1993
It is found that the successive increments in the cardiac beat-to-beat intervals of healthy subjects display scale-invariant, long-range anticorrelations (up to 10(4) heart beats), and the different scaling behavior in health and disease must relate to the underlying dynamics of the heartbeat.