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Characterizing the human postural control system using detrended fluctuation analysis

M. Teresa Blázquez, Marta Anguiano, Fernando Arias de Saavedra, Antonio M. Lallena, Pedro Carpena
2010 Journal of Computational and Applied Mathematics  
Detrended fluctuation analysis is used to study the behaviour of the time series of the position of the center of pressure, output from the activity of a human postural control system.  ...  The similarity of the results obtained for the measurements done with both eyes open and both eyes closed indicate either that the visual system may be disregarded by the postural control system, while  ...  Acknowledgements This work has been supported in part by the Junta de Andalucía (FQM0220) and by the Ministerio de Educación y Ciencia of Spain (P07-FQM3163).  ... 
doi:10.1016/ fatcat:fnub4f2uzzeszfkbuezlyynl5i

The Complexity of Standing Postural Control in Older Adults: A Modified Detrended Fluctuation Analysis Based upon the Empirical Mode Decomposition Algorithm

Junhong Zhou, Brad Manor, Dongdong Liu, Kun Hu, Jue Zhang, Jing Fang, Tobias Preis
2013 PLoS ONE  
Human aging into senescence diminishes the capacity of the postural control system to adapt to the stressors of everyday life.  ...  Adaptive capacity of the postural control system was assessed with the sharpened Romberg test.  ...  It utilizes detrended fluctuation analysis (DFA) [18] to quantify fluctuation amplitudes after ''detrending'' (i.e., removing local trends) at different time scales.  ... 
doi:10.1371/journal.pone.0062585 pmid:23650518 pmcid:PMC3641070 fatcat:67gjykrpxrgxtkcgucuuubuyfe

Hypothetical control of postural sway [article]

Madhur Mangalam, Damian G. Kelty-Stephen
2020 bioRxiv   pre-print
of endogenous postural control.  ...  A second and perhaps a deeper way to understand this intermittency is through the possibility that closed-loop control depends on the cascade-like interactions across many timescales at once.  ...  Using multiscale PDF analysis in the present study, we show that healthy human postural sway is more compatible with the cascade-type multiplicative model.  ... 
doi:10.1101/2020.05.19.104760 fatcat:vuoapwqphjc3lbyuaesjm5ir6a

Nonlinear Variability of Body Sway in Patients with Phobic Postural Vertigo

Roman Schniepp, Max Wuehr, Cauchy Pradhan, Sergej Novozhilov, Siegbert Krafczyk, Thomas Brandt, Klaus Jahn
2013 Frontiers in Neurology  
It has been assumed that more attentional control of body posture and / or co-contraction of leg muscles during standing is used to minimize the physiological body sway in PPV.  ...  These changes in the structure of postural variability might suggest an inappropriate attentional involvement with stabilizing strategies, which are used by HS only for more demanding balance tasks.  ...  ACKNOWLEDGMENTS The authors thank Judy Benson for copy-editing the article.  ... 
doi:10.3389/fneur.2013.00115 pmid:23966974 pmcid:PMC3744052 fatcat:vpvy5a5ncveebdakzy32twymce

Balance Training With a Vibrotactile Biofeedback System Affects the Dynamical Structure of the Center of Pressure Trajectories in Chronic Stroke Patients

Kentaro Kodama, Kazuhiro Yasuda, Nikita A. Kuznetsov, Yuki Hayashi, Hiroyasu Iwata
2019 Frontiers in Human Neuroscience  
This study aimed to investigate the effect of vibrotactile BF training on the temporal structure of CoP during quiet stance in chronic stroke patients using detrended fluctuation analysis (DFA).  ...  These results suggest that the vibrotactile BF training affects postural control strategy used by chronic stroke patients in the ML direction.  ...  In this report, we apply detrended fluctuation analysis (DFA; Peng et al., 1994) to characterize the effects of this BF training in stroke patients.  ... 
doi:10.3389/fnhum.2019.00084 pmid:30914938 pmcid:PMC6423164 fatcat:beoynua4k5ehpdbnl3ons2s6rm

Long-range correlations in human standing

Marcos Duarte, Vladimir M. Zatsiorsky
2001 Physics Letters A  
Two methods were used in this estimation: detrended fluctuation analysis (DFA) and power spectral analysis.  ...  We estimated long-range correlations in the dynamics of sway during prolonged human standing.  ...  The COP displacement represents a collective outcome of the postural control system and the force of gravity [2] .  ... 
doi:10.1016/s0375-9601(01)00188-8 fatcat:opn6n77fzzgknj6m73krnj4z4u

Multifractal Analysis Differentiates Postural Sway in Obese and Nonobese Children

Philip W. Fink, Sarah P. Shultz, Eva D'Hondt, Matthieu Lenoir, Andrew P. Hills
2018 Motor Control  
A multifractal detrended fluctuation analysis was used to compare obese and nonobese children to investigate the cause of previously demonstrated deficiencies in balance for obese children.  ...  Both the obese and nonobese groups demonstrated greater persistence for small fluctuations, but the effect was greater in the obese group.  ...  Discussion This study is the first to use multifractal analysis when examining differences in sensory control of obese children during static posture.  ... 
doi:10.1123/mc.2016-0085 pmid:30518293 fatcat:5k3jkpuannabpmuugha46o4dvu

Frequency-Specific Fractal Analysis of Postural Control Accounts for Control Strategies

Pierre Gilfriche, Véronique Deschodt-Arsac, Estelle Blons, Laurent M. Arsac
2018 Frontiers in Physiology  
Here, we show that one of the most widely used methods for fractal analysis, Detrended Fluctuation Analysis, could be enhanced to account for scalings on specific frequency ranges.  ...  Diverse indicators of postural control in Humans have been explored for decades, mostly based on the trajectory of the center-of-pressure.  ...  DETRENDED FLUCTUATION ANALYSIS (DFA) AND ITS PITFALLS Detrended Fluctuation Analysis (DFA) was first introduced as an indicator of the presence of a scaling phenomenon (Peng et al., 1993 (Peng et al.,  ... 
doi:10.3389/fphys.2018.00293 pmid:29643816 pmcid:PMC5883185 fatcat:ek5kwlhjffeblgihbivee7lowi

Postural instability recruits shorter-timescale processes into the non-Gaussian cascade processes [article]

Mariusz P Furmanek, Madhur Mangalam, Damian G Kelty-Stephen, Grzegorz Juras
2020 bioRxiv   pre-print
Healthy human postural sway exhibits strong intermittency, reflecting a richly interactive foundation of postural control.  ...  Multiple known indices of postural sway governed the appearance or disappearance of the crossover.  ...  We used m = 2, r = 0.2, and τ = 20 for computing the MSE. (iii) We used detrended fluctuation analysis [36] .  ... 
doi:10.1101/2020.06.05.136895 fatcat:5ujmlzpwkncrtfjig4uepsqva4

Temporal Structure of Support Surface Translations Drive the Temporal Structure of Postural Control During Standing

Troy J. Rand, Sara A. Myers, Anastasia Kyvelidou, Mukul Mukherjee
2015 Annals of Biomedical Engineering  
Detrended fluctuation analysis was used to characterize the long-range correlations of the COP time series in the AP direction.  ...  The ability to influence the complexity of postural control through support surface translations can have important implications for rehabilitation.  ...  The resulting step times were analyzed using detrended fluctuation analysis (DFA) and results demonstrated that the temporal structure of their step times entrained to the temporal structure of the auditory  ... 
doi:10.1007/s10439-015-1336-1 pmid:25994281 pmcid:PMC4618057 fatcat:uh3z357eonfcxmkkffehsphcoe

Complexity of human postural control in young and older adults during prolonged standing

Marcos Duarte, Dagmar Sternad
2008 Experimental Brain Research  
in the human physiological system decreases with aging.  ...  Long-range correlations (fractality) of the data were estimated by the detrended fluctuation analysis (DFA); changes in entropy were estimated by the multi-scale entropy (MSE) measure.  ...  Dagmar Sternad was supported by grants from the National Science Foundation (BCS-0450218) and the National Institutes of Health (RO1-HD045639). Exp Brain Res (2008) 191:265-276 275  ... 
doi:10.1007/s00221-008-1521-7 pmid:18696056 fatcat:nr6svxadmrhirmcmpfn5iwbbba

Shannon and Renyi Entropies to Classify Effects of Mild Traumatic Brain Injury on Postural Sway

Jianbo Gao, Jing Hu, Thomas Buckley, Keith White, Chris Hass, Matjaz Perc
2011 PLoS ONE  
Characterizing the effects of mTBI on postural sway could be an important tool for assessing recovery from the injury.  ...  These weaknesses motivated us to use instead Shannon and Renyi entropies to assess postural instability following mTBI.  ...  Detrended fluctuation analysis Detrended fluctuation analysis (DFA) [29] [30] [31] characterizes the second order statistic -the correlation, in a time series.  ... 
doi:10.1371/journal.pone.0024446 pmid:21931720 pmcid:PMC3170368 fatcat:lub7rtfcgrec3i5rw733tdvaa4

Multifractal detrended fluctuation analysis of human gait diseases

Srimonti Dutta, Dipak Ghosh, Sucharita Chatterjee
2013 Frontiers in Physiology  
In this paper multifractal detrended fluctuation analysis (MFDFA) is used to study the human gait time series for normal and diseased sets.  ...  The study reveals that the degree of multifractality is more for normal set compared to diseased set. However, the method fails to distinguish between the two diseased sets.  ...  In this paper a multifractal detrended fluctuation analysis (MFDFA) of human gait time series for diseased and controlled set is performed.  ... 
doi:10.3389/fphys.2013.00274 pmid:24109454 pmcid:PMC3791390 fatcat:ha3jyu7nafalxknrhqbriiicti

The effect of footwear on postural control in bipedal quiet stance

Peter A. Federolf, Lilian Roos, Benno Nigg
2012 Footwear Science  
This file was dowloaded from the institutional repository Brage NIH Federolf, P., Roos, L., Nigg, B. (2012). The effect of footwear on postural control in bipedal quiet stance.  ...  Conclusions This study used a novel approach for the analysis of how the postural control system maintains static stability in quiet stance.  ...  The relative contribution of the first five PM to the entire postural movement, their range of motion, and their persistence (detrended fluctuation analysis) were determined.  ... 
doi:10.1080/19424280.2012.666270 fatcat:onbymlj2xrcq3e2utzsk4rrtsq

Interpretation of postural control may change due to data processing techniques

Christopher K. Rhea, Adam W. Kiefer, W. Geoffrey Wright, Louisa D. Raisbeck, F. Jay Haran
2015 Gait & Posture  
Data were then analyzed using four common variability metrics (standard deviation [SD], root mean square [RMS], detrended fluctuation analysis α [DFA α], and sample entropy [SampEn]).  ...  Postural control is commonly assessed by quantifying center of pressure (CoP) variability during quiet stance. CoP data is traditionally filtered prior to analysis.  ...  Acknowledgement Manuscript preparation was funded by the US Navy (W91CRB-11-D-0001; subcontract P010202825) to Christopher Rhea.  ... 
doi:10.1016/j.gaitpost.2015.01.008 pmid:25737236 fatcat:cq6gijaegze2fdegmusy3lswg4
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