Table 3.
Results on relative and absolute test–retest reliability by measuring instrument.
| Characteristic | Force Plate | OptoGait® | Contact Mat | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ICC (95% CI) |
SEM (ms) |
CV (%) |
рc | ICC (95% CI) |
SEM (ms) |
CV (%) |
рc | ICC (95% CI) |
SEM (ms) |
CV (%) |
рc | |
| Drop height: 24 cm | ||||||||||||
| two-legged | 0.81 (0.68–0.89) |
13.0 | 5.3 | 0.81 | 0.82 (0.70–0.90) |
12.6 | 4.6 | 0.82 | 0.83 (0.71–0.90) |
11.8 | 5.1 | 0.82 |
| one-legged, left | 0.88 (0.78–0.93) |
11.3 | 3.6 | 0.87 | 0.84 (0.72–0.91) |
14.1 | 3.8 | 0.82 | 0.74 (0.58–0.85) |
17.0 | 5.1 | 0.71 |
| one-legged, right | 0.70 (0.52–0.82) |
18.4 | 4.9 | 0.69 | 0.90 (0.82–0.94) |
10.6 | 3.7 | 0.86 | 0.92 (0.86–0.95) |
8.5 | 3.9 | 0.85 |
| Drop height: 43 cm | ||||||||||||
| two-legged | 0.90 (0.83–0.94) |
10.3 | 4.3 | 0.90 | 0.90 (0.83–0.94) |
11.1 | 4.0 | 0.89 | 0.89 (0.80–0.94) |
10.5 | 4.3 | 0.88 |
| Drop height: 62 cm | ||||||||||||
| two-legged | 0.77 (0.62–0.87) |
16.1 | 6.3 | 0.73 | 0.76 (0.60–0.86) |
18.1 | 5.5 | 0.74 | 0.75 (0.59–0.85) |
16.9 | 6.4 | 0.70 |
CI is confidence interval; CV is coefficient of variation; ICC3.1 is intra-class correlation coefficient; SEM is standard measurement error; рc is Lin´s concordance correlation coefficient.