Table 4. Analysis of Between-Group Differences for i2MWT Metrics.
| Variable | Estimated marginal mean (SE) | Estimated marginal mean (SE) difference [95% CI] | ES (95% CI) | MDC | |
|---|---|---|---|---|---|
| Healthy participants | Participants with vestibular loss | ||||
| GV, m/s | 1.45 (0.06) | 1.25 (0.07) | 0.20 (0.11) [−0.03 to 0.42] | 0.98 (−0.16 to 2.12) | 0.02 |
| Cadence, SPM | 117.23 (3.35) | 112.82 (3.72) | 4.41 (5.78) [−7.48 to 16.29] | 0.41 (−0.70 to 1.53) | 1.11 |
| DS | 19.18 (0.72) | 19.82 (0.80) | −0.64 (1.24) [−3.20 to 1.91] | −0.28 (−1.39 to 0.83) | 0.25 |
| SL (left), m | 1.47 (0.04) | 1.31 (0.04) | 0.16 (0.07) [0.03 to 0.30] | 1.35 (0.18 to 2.52) | 0.01 |
| SL (right), m | 1.46 (0.04) | 1.29 (0.04) | 0.17 (0.06) [0.04 to 0.30] | 1.44 (0.25 to 2.62) | 0.01 |
| TA, ° | 180.7 (1.87) | 180.75 (2.07) | −0.05 (3.22) [−6.67 to 6.57] | −0.01 (−1.12 to 1.10) | 0.58 |
| TD, ms | 929 (81) | 1180 (89) | −250 (139) [−536 to 35] | −0.97 (−2.12 to 0.17) | 0.26 |
| PTV, °/s | 240.17 (12.78) | 189.74 (14.17) | 50.43 (22.03) [5.13 to 95.72] | 1.23 (0.07 to 2.40) | 4.72 |
| MTV, °/s | 198 (11.44) | 165.58 (12.69) | 32.41 (19.72) [−8.13 to 72.95] | 0.89 (−0.25 to 2.02) | 3.93 |
| TNS | 3.27 (0.15) | 3.47 (0.16) | −0.2 (0.25) [−0.73 to 0.32] | −0.43 (−1.55 to 0.68) | 0.04 |
Abbreviations: DS, double support; ES, effect size (Cohen d); GV, gait velocity; i2MWT, instrumented 2-minute walk test; MDC, minimal detectable change; MTV, mean turn velocity; PTV, peak turn velocity; SL, stride length; SPM, steps per minute; TA, turn angle; TD, turn duration; TNS, number of steps to turn.