Abstract
The authors evaluated the short-term (within-day, between-days) repeatability of center of pressure (COP) displacements. COP sway area and speed were obtained in the morning and afternoon of two separate days, both with open (EO) and closed (EC) eyes, in 10 healthy adults. Agreement and variability among conditions were tested by ANOVA and Bland-Altman plots. Mode (EO/EC, area: p = .032; speed: p < .004), and day (day1/day2, area: p = .006; speed: p = .02) showed significant differences. The EC condition and the second test day showed the largest values, with medium-large effect sizes. Time-of-day did not influence COP displacements. Speed had better agreement than area (Bland-Altman plots). COP displacements were well reproducible within-day, but had significant between-days variations. COP assessments should be performed in the same session.
Original language | English |
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Pages (from-to) | 123-128 |
Number of pages | 6 |
Journal | Journal of Motor Behavior |
Volume | 49 |
Issue number | 2 |
DOIs | |
Publication status | Published - Mar 2017 |
Keywords
- Adult
- Analysis of Variance
- Blindness
- Female
- Humans
- Male
- Middle Aged
- Postural Balance
- Reproducibility of Results
- Young Adult
- Journal Article