Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Two-Dimensional Automatic Control Modeling of a Posture Control System.

Kyung S Park1, Un H Kim1

  • 1a Korea Advanced Institute of Science & Technology , Korea.

International Journal of Occupational Safety and Ergonomics : JOSE
|December 22, 1999
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Single-crystal poly(3,4-ethylenedioxythiophene) nanowires with ultrahigh conductivity.

Nano letters·2014
Same author

Predictive factors of impaired quality of life in Korean patients with inactive inflammatory bowel disease: association with functional gastrointestinal disorders and mood disorders.

Journal of clinical gastroenterology·2012
Same author

One-step fabrication of nanowire-grid polarizers using liquid-bridge-mediated nanotransfer molding.

Nanoscale research letters·2012
Same author

An empirical comparative study on biological age estimation algorithms with an application of Work Ability Index (WAI).

Mechanisms of ageing and development·2009
Same author

Light stamping lithography: microcontact printing without inks.

Journal of the American Chemical Society·2006

This study developed a posture control model using feedback control theory. The model accurately predicts human sway, showing greater oscillation with eyes closed, suggesting applications in ergonomics and sports.

Area of Science:

  • Biomechanics
  • Control Theory
  • Human Physiology

Background:

  • Human postural control is crucial for stability.
  • Understanding postural responses to external perturbations is essential.
  • Feedback control theory provides a framework for analyzing dynamic systems.

Purpose of the Study:

  • To develop and validate a 2-dimensional posture control model.
  • To investigate human postural characteristics under sensory manipulation (eyes open vs. closed).
  • To assess the model's applicability in real-world scenarios.

Main Methods:

  • A 2D feedback control model was developed.
  • Five healthy participants underwent postural sway tests with eyes open and closed.
  • Participants were subjected to a sudden anterior perturbation at the pelvis.
Keywords:
model fitnessparameter identificationperturbationposture control modelposturographypredictabilitystability

Related Experiment Videos

  • Postural sway was recorded at 100 Hz for 20 seconds.
  • Transfer functions were identified using the least squares method.

    • Main Results:

    • The developed model demonstrated good fitness, predictability, and stability.
    • Postural sway exhibited increased oscillations in the eyes-closed condition compared to eyes-open.
    • The identified transfer functions accurately represented posture control characteristics.

    Conclusions:

    • The validated posture control model effectively characterizes human responses to perturbation.
    • Sensory input (vision) significantly influences postural stability.
    • The model shows potential for application in ergonomics, sports science, and clinical rehabilitation.