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Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
Published on: December 11, 2013
Daytime changes in postural stability and repeatability of posturographic measurements
Pia Forsman1, Edward Haeggström, Anders Wallin
1Finnish Institute of Occupational Health, Helsinki, Finland. Pia.Forsman@ttl.fi
Journal of Occupational and Environmental Medicine
|June 15, 2007
Summary
Postural balance declines during the day, but morning balance measurements are repeatable. This suggests posturography could be a viable tool for monitoring occupational sleepiness.
Area of Science:
- Physiology
- Ergonomics
- Sleep Science
Background:
- Daytime sleepiness is linked to accidents.
- Current occupational sleepiness monitoring tests are limited.
- Objective measures of sleepiness are needed.
Purpose of the Study:
- Investigate the impact of daytime on balance.
- Assess the repeatability of posturographic measurements.
- Explore potential for a convenient sleepiness test.
Main Methods:
- 30 healthy volunteers participated.
- Balance was measured using a static force platform at 8:30 am, 10:30 am, and 1:30 pm.
- Repeatability was tested weekly for one month.
Main Results:
- Balance significantly worsened throughout the day.
- Measurements could distinguish between morning and afternoon testing.
- Morning balance remained consistent over the month.
Conclusions:
- Posturographic measurements are repeatable.
- A circadian rhythm affects balance.
- This circadian effect may indicate sleepiness levels.
