Table 3.
Intersession reliability of time and pressure variables for each foot under simulated LLD conditions.
| Variable | Mean (SD) | CoV (%) | ICC (95% CI) | SEM% | MDC% |
|---|---|---|---|---|---|
| 0 mm of LLD | |||||
| Stance time short (ms) | 761.42 (7.19) | 0.94 | 0.957 (0.932–0.976) | 0.20 | 0.54 |
| Stance time long (ms) | 754.05 (2.96) | 0.39 | 0.960 (0.936–0.977) | 0.08 | 0.22 |
| Mean pressure short (g/cm2) | 748.74 (5.12) | 0.68 | 0.955 (0.927–0.974) | 0.15 | 0.40 |
| Mean pressure long (g/cm2) | 750.95 (12.37) | 1.65 | 0.931 (0.889–0.960) | 0.43 | 1.20 |
| Peak pressure short (g/cm2) | 1427.82 (16.46) | 1.15 | 0.928 (0.886–0.959) | 0.31 | 0.86 |
| Peak pressure long (g/cm2) | 1417.26 (13.03) | 0.92 | 0.918 (0.869–0.953) | 0.26 | 0.73 |
| 5 mm of LLD | |||||
| Stance time short (ms) | 762.16 (5.77) | 0.76 | 0.981 (0.969–0.989) | 0.10 | 0.29 |
| Stance time long (ms) | 759.73 (5.03) | 0.66 | 0.980 (0.968–0.988) | 0.09 | 0.26 |
| Mean pressure short (g/cm2) | 746.61 (5.44) | 0.73 | 0.955 (0.928–0.974) | 0.15 | 0.43 |
| Mean pressure long (g/cm2) | 747.13 (11.88) | 1.59 | 0.866 (0.785–0.923) | 0.58 | 1.61 |
| Peak pressure short (g/cm2) | 1443.52 (14.39) | 1.00 | 0.925 (0.879–0.957) | 0.27 | 0.76 |
| Peak pressure long (g/cm2) | 1338.84 (9.45) | 0.71 | 0.927 (0.883–0.958) | 0.19 | 0.53 |
| 10 mm of LLD | |||||
| Stance time short (ms) | 763.82 (14.15) | 0.54 | 0.986 (0.977–0.992) | 0.06 | 0.18 |
| Stance time long (ms) | 765.09 (4.23) | 0.55 | 0.984 (0.974–0.991) | 0.07 | 0.19 |
| Mean pressure short (g/cm2) | 756.19 (7.65) | 1.01 | 0.970 (0.952–0.983) | 0.18 | 0.49 |
| Mean pressure long (g/cm2) | 723.24 (11.83) | 1.64 | 0.918 (0.869–0.953) | 0.47 | 1.30 |
| Peak pressure short (g/cm2) | 1435.58 (11.95) | 0.83 | 0.924 (0.878–0.956) | 0.23 | 0.64 |
| Peak pressure long (g/cm2) | 1274.77 (15.55) | 1.22 | 0.898 (0.837–0.941) | 0.39 | 1.08 |
| 15 mm of LLD | |||||
| Stance time short (ms) | 760.54 (4.39) | 0.58 | 0.988 (0.981–0.993) | 0.06 | 0.18 |
| Stance time long (ms) | 775.58 (4.19) | 0.54 | 0.986 (0.977–0.992) | 0.06 | 0.18 |
| Mean pressure short (g/cm2) | 760.41 (5.54) | 0.73 | 0.972 (0.955–0.984) | 0.12 | 0.34 |
| Mean pressure long (g/cm2) | 711.58 (5.25) | 0.74 | 0.929 (0.886–0.959) | 0.20 | 0.55 |
| Peak pressure short (g/cm2) | 1423.44 (17.28) | 1.21 | 0.928 (0.884–0.958) | 0.33 | 0.90 |
| Peak pressure long (g/cm2) | 1265.21 (17.58) | 1.39 | 0.935 (0.895–0.962) | 0.35 | 0.98 |
| 20 mm of LLD | |||||
| Stance time short (ms) | 766.98 (5.22) | 0.68 | 0.983 (0.976–0.990) | 0.09 | 0.25 |
| Stance time long (ms) | 783.51 (4.31) | 0.55 | 0.984 (0.974–0.991) | 0.07 | 0.19 |
| Mean pressure short (g/cm2) | 758 (3.51) | 0.46 | 0.962 (0.940–0.978) | 0.09 | 0.25 |
| Mean pressure long (g/cm2) | 706.71 (5.47) | 0.77 | 0.890 (0.824–0.937) | 0.26 | 0.71 |
| Peak pressure short (g/cm2) | 1409.33 (21.37) | 1.52 | 0.906 (0.850–0.946) | 0.46 | 1.29 |
| Peak pressure long (g/cm2) | 1245.60 (16.16) | 1.30 | 0.900 (0.841–0.943) | 0.41 | 1.14 |
SD, standard deviation; CoV, coefficient of variation; ICC, intraclass correlation coefficient; 95% CI, 95 percent confidence interval; SEM, standard error of measurement; MDC, minimum detectable change.