The effects of scale display of visual feedback on postural control during quiet standing in healthy elderly subjects.

Full Abstract

OBJECTIVE:
To assess the effects of scale display of visual feedback (VFB) on postural control during quiet standing in healthy elderly subjects.

DESIGN:
Before and after intervention trials.

SETTING:
Medical university bioengineering laboratory.

PARTICIPANTS:
Twelve healthy elderly subjects (mean age, 70.2+/-2.8 y; mean body weight, 65.5+/-4.1 kg; mean height, 163.4+/-6.5 cm).

INTERVENTION:
Participants were asked to stand upright as immobile as possible in an eyes-open condition and 3 VFB conditions involving increasing scale displays:
2 to 1 (VFB(2)), 5 to 1 (VFB(5)), and 10 to 1 (VFB(10)). These latter conditions correspond to the ratio between the real displacements of the center of pressure (COP), as measured by the force platform, and their visualization on the monitor screen.

MAIN OUTCOME MEASURE:
COP displacements were recorded using a force platform.

RESULTS:
VFB had different effects on the COP displacements depending on the scale display; no significant difference was observed between the VFB(2) and the eyes-open conditions, whereas the VFB(5) and VFB(10) conditions yielded decreased COP displacements relative to the eyes-open condition.

CONCLUSIONS:
The effectiveness of the VFB system in improving postural control during quiet standing in elderly subjects depends on the scale display. These findings could have implications in clinical and rehabilitative areas.

Learn Faster Today Improve your study skills

Author information

Author/s: Pinsault, Nicolas (N); Vuillerme, Nicolas (N);

Affiliation: Laboratoire TIMC-IMAG, Grenoble, France.

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Archives of physical medicine and rehabilitation (Arch Phys Med Rehabil), published in United States. (Language: eng)

Reference: 2008-Sep; vol 89 (issue 9) : pp 1772-4

Dates: Created 2008/09/01; Completed 2008/09/23;

PMID: 18760162, status: MEDLINE (last retrieval date: 11/6/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

External Links for this article (including full text providers, if available):

Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.

This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.

MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Intervention Studies
Male
Musculoskeletal Equilibrium - physiology
Posture - physiology
Visual Perception - physiology

These are the highest related articles currently in the database:

See 100+ related articles.