Cited by 73Balance, Gait, and Falls PreventionAutism Spectrum Disorder ResearchMotor Control and Adaptation

Decreased dynamical complexity during quiet stance in children with Autism Spectrum Disorders

Fournier, Kimberly A., Amano, Shinichi, Radonovich, Krestin J., Bleser, Tana M., Hass, Chris J.·2014·Gait & Posture

Abstract

Background Postural control deficits in individuals with Autism Spectrum Disorders (ASD) are widely acknowledged; however, the underlying biomechanical features of these deficits remain unknown. Nonlinear analyses provide insight into the nature of how movement is controlled and have the potential to provide new insight into the postural control abnormalities associated with ASD. The purpose of this study was to further investigate postural control deficits in children with ASD through linear and nonlinear analyses of center of pressure (COP) data.Methods We evaluated COP data during quiet standing for 16 children with ASD and 17 age-matched typically developing (TD) children. The magnitude of COP fluctuations (COP ranges, velocity, and sway area) and complexity of postural control dynamics, quantified by multiscale entropy (MSE), were compared across groups.Results Children with ASD displayed larger fluctuations in their COP data, observed in COP ranges (95.5% mediolaterally and 46.9% anteroposteriorly, p<0.05 respectively) and COP sway area (885%, p<0.05). Children with ASD also displayed less complexity in their COP data, observed in the MSE complexity index (CI) (32.4% mediolaterally and 35.7% anteroposteriorly, p<0.05 respectively).Conclusions The present study successfully revealed that children with ASD have more repetitive patterns in their COP data, indicating a less complex control of posture, on multiple time scales, during quiet stance. These findings suggest a more regular or restricted control of posture and may be an initial step in linking postural instability to stereotypic behavior and the neurobiology of ASD.

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Crossref · 10.1016/j.gaitpost.2013.08.016

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  • Complexity in postural sway has been shown to be partially compromised in children with ASD compared to healthy controls.

    “Though some conflicting findings have been reported, complexity in postural sway has been shown to be partially compromised in children with ASD compared to healthy controls (Fournier et al. 2014; Li et al. 2019).”

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Authors
Fournier, K. A., Amano, S., Radonovich, K. J., Bleser, T. M., & Hass, C. J.
Affiliations
  • University of Rhode Island (US)
  • University of Florida (US)
Corresponding author
Fournier, Kimberly A.
Venue
Gait & Posture
Publisher
Elsevier BV
Published
2014-01
Volume
39
Issue
1
Pages
420-423
ISSN
0966-6362 (ISSN-L)
OpenAlex
W2028532739
Cited by
73
References
29
Citations by year
2026: 3 · 2025: 8 · 2024: 3 · 2023: 4 · 2022: 7 · 2021: 12 · 2020: 6 · 2019: 3 · 2018: 9 · 2017: 5 · 2016: 7 · 2015: 5 · 2014: 1
FWCI
11.26
Type
journal article
Language
en
Open access
closed
Locations
  • Gait & Posture (publishedVersion)
  • PubMed (publishedVersion)
Funders
Autism Speaks
Topics
  • Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Balance, Gait, and Falls Prevention
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
Keywords
autism spectrum disorder, postural control, quiet standing, center of pressure, multiscale entropy, nonlinear dynamics, postural instability, children, stereotypy, postural sway
MeSH terms
Child, Child Development Disorders, Pervasive, Child, Preschool, Postural Balance, Humans, Pressure, Linear Models, Case-Control Studies, Nonlinear Dynamics

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