Table 2.
Comparisons of the stability indexes between 17 ataxic patients and 16 controls at matched gait speed.
| Parameter | Patients | Controls | t | p | Cohen’s d |
|---|---|---|---|---|---|
| HR-AP | 1.665 ± 0.300 | 2.414 ± 0.540 | 4.964 | <0.001 | 1.714 |
| HR-ML | 1.639 ± 0.282 | 2.347 ± 0.559 | 4.631 | <0.001 | 1.599 |
| HR-VT | 1.694 ± 0.304 | 2.549 ± 0.715 | 4.519 | <0.001 | 1.556 |
| Step length CV (%) | 21.249 ± 10.293 | 13.205 ± 6.004 | −2.720 | 0.011 | 0.955 |
| Step length (m) | 0.499 ± 0.087 | 0.569 ± 0.067 | −2.382 | 0.024 | 0.112 |
| Speed (m/s) | 0.939 ± 0.195 | 0.924 ± 0.239 | −0.207 | 0.838 | 0.069 |
Mean ± standard deviation values, the results of the independent samples t-test and Cohen’s d are reported. Values of p lower than 0.05 were considered statistically significant. HR-AP: harmonic ratio in the anterior–posterior direction; HR-ML: harmonic ratio in the mediolateral direction; and HR-VT: harmonic ratio in the vertical direction.