Table 4.
Percentiles and descriptive statistics for the monopodal balance test on unstable surface (mat).
| Variable | G1 (n = 87) | G2 (n = 72) | G3 (n = 85) | G4 (n = 92) | G5 (n = 87) | G6 (n = 73) |
|---|---|---|---|---|---|---|
| Maximum value of medio-lateral axis | ||||||
| Mean ± standard deviation | 9.5 ± 11.6 | 12.6 ± 13.6 | 18 ± 16.4 | 18.2 ± 16.5 | 22.5 ± 15.7 | 22.6 ± 14.1 |
| Kurtosis | 3 | 3.3 | 5.3 | 2.5 | 6.2 | 1.8 |
| Percentile 25 | 0.4 | 5.7 | 7 | 9 | 12.2 | 14.3 |
| Percentile 50 (median) | 5 | 7 | 13 | 15 | 19 | 24.7 |
| Percentile 75 | 14.3 | 15.3 | 29.3 | 33 | 32.7 | 34.7 |
| Interquartile range | 13.9 | 9.6 | 22.3 | 24 | 20.5 | 20.4 |
| Mean value of medio-lateral axis | ||||||
| Mean ± standard deviation | 0.9 ± 1.3 | 1.2 ± 1.4 | 2 ± 2.4 | 2 ± 2.7 | 3 ± 3.8 | 2.9 ± 2.1 |
| Kurtosis | 4.1 | 3.5 | 5.9 | 6.3 | 12.5 | 1.6 |
| Percentile 25 | 0.1 | 0.5 | 0.8 | 1 | 1.5 | 1.8 |
| Percentile 50 (median) | 0.3 | 0.6 | 0.9 | 1.3 | 1.9 | 3 |
| Percentile 75 | 1 | 1.3 | 2.8 | 2.9 | 3.6 | 5.1 |
| Interquartile range | 0.9 | 0.8 | 2 | 1.9 | 2.1 | 3.3 |
| Maximum value of the Root Mean Square of accelerations | ||||||
| Mean ± standard deviation | 14.4 ± 15.7 | 16.9 ± 16.3 | 22.5 ± 19.7 | 22 ± 18.2 | 26.3 ± 16.3 | 29.2 ± 23.2 |
| Kurtosis | 1.9 | 2.6 | 4.7 | 2.5 | 9.6 | 2.1 |
| Percentile 25 | 0.4 | 6.4 | 7.7 | 10 | 15.7 | 17.4 |
| Percentile 50 (median) | 6.4 | 9.3 | 15.8 | 17 | 23.1 | 25.2 |
| Percentile 75 | 23.8 | 24.8 | 35.8 | 37.4 | 39.5 | 41.6 |
| Interquartile range | 23.4 | 18.4 | 28.1 | 27.4 | 23.8 | 24.2 |
| Mean value of the Root Mean Square of accelerations | ||||||
| Mean ± standard deviation | 1.4 ± 1.7 | 1.7 ± 1.8 | 2.8 ± 3 | 2.8 ± 3.5 | 3.8 ± 2.5 | 4.4 ± 6 |
| Kurtosis | 2.5 | 3.2 | 5 | 6.1 | 15.5 | 1.8 |
| Percentile 25 | 0.02 | 0.4 | 0.8 | 1 | 1.5 | 1.8 |
| Percentile 50 (median) | 0.4 | 0.9 | 1.8 | 1.4 | 2.8 | 3.8 |
| Percentile 75 | 2.3 | 2.8 | 3.9 | 3.3 | 4.4 | 6.1 |
| Interquartile range | 2.28 | 2.4 | 3.1 | 2.3 | 2.9 | 4.3 |