The Effect of Somatosensory Cue on Postural Stability in Blinded Persons

This study has been completed.
Information provided by:
Soroka University Medical Center Identifier:
First received: March 30, 2008
Last updated: September 19, 2010
Last verified: September 2010

Blind Adults that willing to participate in the study will be tested with well-established measuring techniques of Balance control using force plate in the movement and Rehabilitation Laboratory at Ben-Gurion University. An automated algorithm will be used to extract standardized stabilogram-diffusion parameters from each of the COP data sets collected during quiet standing. These parameters include diffusion coefficients, critical displacement, critical time and scaling exponents for both lateral and anterior-posterior sway directions (Collins & De Luca, 1993). the subjects will be tested in 3 task conditions (eyes blindfolded, eyes blindfolded holding stick, eyes blindfolded holding a dog). Participants will be required to stand on the platform 10 times for 30 s For each trial, they will be instructed to sway as little as possible.

Visual Impairment

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Cross-Sectional
Official Title: The Effect of Somatosensory Cue on Postural Stability in Blinded Persons

Further study details as provided by Soroka University Medical Center:

Primary Outcome Measures:
  • SDF parameters [ Time Frame: baseline ] [ Designated as safety issue: No ]

Estimated Enrollment: 60
Study Start Date: January 2008
Study Completion Date: June 2010
Primary Completion Date: March 2009 (Final data collection date for primary outcome measure)


Ages Eligible for Study:   20 Years to 70 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population

30 blind persons and 30 control


Inclusion Criteria:

  • Blind persons
  • Able to stand safely for 30 seconds
  • Able to walk independently
  • Hip OA prior THA

Exclusion Criteria:

  • Stroke or other neurological diseases
  • Orthopedic surgery at the past year
  Contacts and Locations
Please refer to this study by its identifier: NCT00650676

Soroka University Medical Center
Beer-Sheva, Israel
Sponsors and Collaborators
Soroka University Medical Center
Principal Investigator: Itshak Melzer, PhD Ben-gurion University of the Negev, Beer-Sheva, Israel
Study Chair: Ronit Yagev, MD Soroka University Medical Centar
  More Information

No publications provided

Responsible Party: Itshak Melzer PhD, PT, Ben-Gurion University of the Negev Identifier: NCT00650676     History of Changes
Other Study ID Numbers: sor464308ctil, MY4643
Study First Received: March 30, 2008
Last Updated: September 19, 2010
Health Authority: Israel: Ethics Commission

Additional relevant MeSH terms:
Vision, Low
Vision Disorders
Sensation Disorders
Neurologic Manifestations
Nervous System Diseases
Eye Diseases
Signs and Symptoms processed this record on April 17, 2014