Table 2.
Mean (S.D.) and test-retest reliability of the gait parameters for the two measurement sessions in healthy young adults.
| Gait parameters | Session 1 | Session 2 | ICC (95% CI) | 95% LOA | CV % | SEM % | MDC % |
|---|---|---|---|---|---|---|---|
| Speed (m/s) | 0.84 (0.07) | 0.85 (0.07) | 0.978 (0.943–0.992) | −0.026~0.037 | 1.35 | 2.03 | 5.63 |
| Cadence (steps/m) | 95.13 (8.35) | 94.73 (9.21) | 0.962 (0.901–0.948) | −5.173~4.373 | 1.81 | 0.37 | 1.02 |
| Gait cycle (s) | 1.27 (0.11) | 1.27 (0.13) | 0.961 (0.900–0.985) | −0.057~0.073 | 1.84 | 0.40 | 1.11 |
| Lt. step (cm) | 53.44 (2.91) | 53.39 (3.42) | 0.805 (0.668–0.929) | −5.101~4.324 | 3.19 | 1.89 | 5.24 |
| Rt. step (cm) | 54.22 (3.84) | 54.55 (3.61) | 0.835 (0.613–0.935) | −3.865~4.532 | 2.78 | 1.17 | 3.23 |
| Lt. step time (s) | 0.64 (0.06) | 0.64 (0.07) | 0.920 (0.799–0.969) | −0.049~0.050 | 2.79 | 0.88 | 2.43 |
| Rt. step time (s) | 0.64 (0.07) | 0.64 (0.06) | 0.940 (0.848–0.977) | −0.050~0.043 | 2.58 | 0.66 | 1.82 |
| Stride (cm) | 106.28 (4.46) | 107.66 (6.49) | 0.812 (0.566–0.925) | −5.035~8.083 | 2.25 | 1.14 | 3.16 |
| Lt. SLS (%) | 31.31 (1.52) | 31.47 (1.89) | 0.873 (0.694–0.951) | −1.527~1.861 | 1.94 | 0.76 | 2.12 |
| Rt. SLS (%) | 31.15 (1.50) | 31.74 (1.71) | 0.857 (0.658–0.944) | −1.100~2.277 | 1.93 | 0.78 | 2.15 |
| TDLS (%) | 37.56 (2.93) | 36.81 (3.52) | 0.911 (0.778–0.966) | −3.430~1.930 | 2.60 | 0.84 | 2.34 |
| Lt. swing phase (%) | 31.17 (1.51) | 31.72 (1.72) | 0.855 (0.655–0.943) | −1.151~2.262 | 1.95 | 0.79 | 2.20 |
| Rt. swing phase (%) | 31.29 (1.53) | 31.46 (1.89) | 0.872 (0.691–0.950) | −1.548~1.870 | 1.96 | 0.77 | 2.14 |
| Lt. stance phase (%) | 68.84 (1.52) | 68.28 (1.71) | 0.856 (0.657–0.944) | −2.265~1.142 | 0.89 | 0.36 | 1.00 |
| Rt. stance phase (%) | 68.72 (1.52) | 68.28 (2.31) | 0.774 (0.492–0.909) | −3.018~2.140 | 1.35 | 0.76 | 2.11 |
ICC – intra correlation coefficient; LOA – limits of agreement; CVME – coefficients of variation of method error; SEM – standard error of measurement; MDC – minimum detectable change; SLS – single limb support; TDLS – total double limb support.