Display Settings:


Send to:

Choose Destination
See comment in PubMed Commons below
Ann Rehabil Med. 2012 Feb;36(1):112-8. doi: 10.5535/arm.2012.36.1.112. Epub 2012 Feb 29.

Factors affecting test results and standardized method in quiet standing balance evaluation.

Author information

  • 1Department of Rehabilitation Medicine, School of Medicine, Ewha Womans University, Seoul 158-710, Korea.



To identify factors affecting test results of the quiet standing balance evaluation conducted by posturography and to investigate the standardized method by comparing results according to feet width.


The study cohort consisted of 100 healthy individuals. We assessed the quiet standing balance of subjects by using 3 different methods: standing on a force plate with feet width the same as shoulder width (test 1); with feet width the same as half the shoulder width (test 2); with feet width determined by the subject's comfort (test 3). Subjects underwent each test with their eyes open and closed for 30 seconds each time. Parameters for measuring standing balance included the mean mediolateral and anteroposterior extent, speed, and the velocity moment of center of pressure (COP) movement.


All parameters showed better results when the subject's eyes were open rather than closed, and the mean AP extent and speed increased as the age of the subjects increased (p<0.01). However, there was no significant correlation between height and the study parameters, and no differences between men and women. Mean mediolateral extent and speed were significantly longer and faster in test 1 compared with tests 2 and 3 (p<0.01). The results of test 2 were better than the results of test 3, but the difference was not statistically significant.


COP movements increased with age and when subjects closed their eyes in an evaluation of quiet standing balance conducted by posturography. Gender and height did not affect results of the test. We suggest that an appropriate method for conducting posturography is to have the subject stand on a force plate with their feet width the same as half the shoulder width, because this posture provided relatively accurate balance capacity.


Balance; Evaluation; Method

Free PMC Article

Images from this publication.See all images (1)Free text

Fig. 1
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Icon for Korean Academy of Rehabilitation Medicine Icon for PubMed Central
    Loading ...
    Write to the Help Desk