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. 2020 Oct 19;20(20):5906. doi: 10.3390/s20205906

Table 4.

Reliability statistics for spatial and spatiotemporal gait characteristics for PwMS and HCs. Colour code ICC: Poor < 0.5, moderate = 0.5–0.75, good = 0.75–0.9, excellent > 0.9; SEM%: low ≤10%, High >10%. MDC%: low ≤20%, 20% < acceptable < 40%, high ≥40%.

PwMS HCs
ICC (2,1) (lb, ub) p SEM SEM (%) MDC MDC (%) ICC (2,1) (lb, ub) p SEM SEM (%) MDC MDC (%)
Spatial Spatial
step length (m) step length (m)
0.05 0.94 0.90 0.97 <0.001 0.041 8.94 0.114 24.79 0.05 0.45 -0.11 0.81 0.061 0.095 18.87 0.263 52.31
0.25 0.94 0.90 0.97 <0.001 0.032 5.99 0.090 16.60 0.25 0.70 0.23 0.91 0.006 0.046 7.73 0.128 21.44
0.5 0.94 0.89 0.96 <0.001 0.029 5.01 0.082 13.90 0.5 0.92 0.74 0.98 <0.001 0.022 3.39 0.061 9.40
0.75 0.93 0.87 0.96 <0.001 0.030 4.73 0.083 13.12 0.75 0.92 0.73 0.98 <0.001 0.025 3.63 0.068 10.07
0.95 0.78 0.65 0.87 <0.001 0.059 8.58 0.163 23.77 0.95 0.96 0.80 0.99 <0.001 0.020 2.74 0.054 7.58
max 0.53 0.30 0.70 <0.001 0.155 19.68 0.430 54.56 max 0.96 0.86 0.99 <0.001 0.022 2.81 0.061 7.78
mean 0.95 0.91 0.97 <0.001 0.028 4.75 0.077 13.16 mean 0.90 0.67 0.97 <0.001 0.025 3.92 0.068 10.87
min 0.75 0.60 0.85 <0.001 0.072 26.99 0.200 74.80 min 0.63 0.07 0.89 0.005 0.064 23.01 0.178 63.79
std 0.84 0.73 0.90 <0.001 0.020 24.02 0.054 66.59 std 0.45 −0.08 0.81 0.048 0.035 43.93 0.097 121.77
CV 0.93 0.87 0.96 <0.001 0.030 19.18 0.082 53.15 CV 0.33 −0.19 0.75 0.115 0.066 51.28 0.183 142.15
variability 0.78 0.65 0.87 <0.001 0.021 28.78 0.058 79.78 variability 0.59 0.07 0.87 0.014 0.023 32.15 0.063 89.12
asymmetry 0.78 0.64 0.87 <0.001 0.024 53.39 0.067 148.00 asymmetry 0.70 0.20 0.91 0.007 0.023 59.55 0.063 165.07
stride length (m) stride length (m)
0.05 0.93 0.88 0.96 <0.001 0.076 7.57 0.212 20.99 0.05 0.68 0.19 0.90 0.008 0.092 8.22 0.255 22.79
0.25 0.95 0.91 0.97 <0.001 0.059 5.31 0.165 14.73 0.25 0.81 0.47 0.94 0.001 0.069 5.71 0.192 15.83
0.5 0.94 0.89 0.96 <0.001 0.059 5.01 0.163 13.88 0.5 0.92 0.72 0.98 <0.001 0.044 3.49 0.123 9.69
0.75 0.89 0.82 0.94 <0.001 0.073 5.91 0.201 16.39 0.75 0.96 0.86 0.99 <0.001 0.033 2.49 0.091 6.89
0.95 0.89 0.82 0.94 <0.001 0.069 5.36 0.192 14.85 0.95 0.95 0.83 0.99 <0.001 0.038 2.77 0.106 7.69
max 0.84 0.74 0.91 <0.001 0.093 6.77 0.259 18.76 max 0.95 0.82 0.98 <0.001 0.042 2.91 0.116 8.08
mean 0.94 0.90 0.97 <0.001 0.056 4.80 0.155 13.32 mean 0.91 0.69 0.97 <0.001 0.048 3.81 0.133 10.55
min 0.84 0.74 0.91 <0.001 0.111 13.45 0.308 37.28 min 0.81 0.44 0.95 <0.001 0.058 6.22 0.161 17.25
std 0.74 0.59 0.85 <0.001 0.027 26.30 0.074 72.90 std 0.70 0.25 0.91 0.004 0.024 25.30 0.067 70.12
CV 0.82 0.71 0.90 <0.001 0.031 30.78 0.085 85.31 CV 0.56 0.02 0.85 0.025 0.025 32.02 0.069 88.75
Spatiotemporal Spatiotemporal
step velocity (m/s) step velocity (m/s)
0.05 0.92 0.87 0.96 <0.001 0.090 10.37 0.250 28.73 0.05 0.63 0.12 0.88 0.012 0.155 16.70 0.429 46.30
0.25 0.94 0.90 0.97 <0.001 0.064 6.16 0.177 17.07 0.25 0.88 0.63 0.97 <0.001 0.064 5.76 0.177 15.96
0.5 0.95 0.91 0.97 <0.001 0.055 4.84 0.152 13.41 0.5 0.95 0.81 0.99 <0.001 0.037 3.06 0.102 8.49
0.75 0.92 0.86 0.95 <0.001 0.065 5.32 0.181 14.73 0.75 0.93 0.76 0.98 <0.001 0.045 3.57 0.126 9.88
0.95 0.82 0.70 0.89 <0.001 0.092 6.74 0.255 18.69 0.95 0.93 0.73 0.98 <0.001 0.050 3.67 0.139 10.17
max 0.53 0.30 0.70 <0.001 0.249 15.49 0.691 42.94 max 0.75 0.31 0.93 0.003 0.166 10.26 0.460 28.45
mean 0.95 0.91 0.97 <0.001 0.054 4.79 0.150 13.28 mean 0.93 0.78 0.98 <0.001 0.045 3.79 0.125 10.52
min 0.80 0.67 0.88 <0.001 0.124 24.54 0.343 68.02 min 0.66 0.14 0.90 0.004 0.106 19.88 0.293 55.10
std 0.76 0.62 0.86 <0.001 0.045 25.86 0.124 71.68 std 0.50 −0.03 0.83 0.030 0.053 32.92 0.146 91.25
CV 0.89 0.81 0.93 <0.001 0.039 22.98 0.108 63.70 CV 0.40 −0.15 0.78 0.081 0.054 38.20 0.149 105.89
variability 0.75 0.60 0.85 <0.001 0.045 27.85 0.125 77.19 variability 0.69 0.19 0.91 0.002 0.037 24.93 0.102 69.11
asymmetry 0.73 0.57 0.84 <0.001 0.036 44.41 0.100 123.09 asymmetry 0.61 0.05 0.88 0.020 0.025 41.49 0.068 115.01
stride velocity (m/s) stride velocity (m/s)
0.05 0.93 0.88 0.96 <0.001 0.077 8.05 0.213 22.31 0.05 0.85 0.54 0.96 <0.001 0.074 7.19 0.204 19.94
0.25 0.95 0.91 0.97 <0.001 0.060 5.65 0.167 15.65 0.25 0.92 0.73 0.98 <0.001 0.050 4.45 0.139 12.34
0.5 0.96 0.93 0.98 <0.001 0.050 4.45 0.139 12.33 0.5 0.95 0.83 0.99 <0.001 0.040 3.35 0.111 9.30
0.75 0.94 0.90 0.97 <0.001 0.055 4.64 0.153 12.87 0.75 0.96 0.85 0.99 <0.001 0.038 3.05 0.105 8.45
0.95 0.94 0.90 0.97 <0.001 0.053 4.16 0.146 11.53 0.95 0.95 0.84 0.99 <0.001 0.042 3.22 0.116 8.93
max 0.85 0.76 0.91 <0.001 0.091 6.69 0.254 18.56 max 0.85 0.54 0.96 <0.001 0.081 5.91 0.226 16.39
mean 0.95 0.92 0.97 <0.001 0.054 4.76 0.148 13.19 mean 0.94 0.81 0.98 <0.001 0.041 3.50 0.114 9.71
min 0.82 0.71 0.89 <0.001 0.114 14.59 0.317 40.44 min 0.88 0.60 0.97 <0.001 0.049 5.70 0.135 15.80
std 0.67 0.48 0.80 <0.001 0.030 27.37 0.083 75.87 std 0.61 0.10 0.88 0.012 0.024 23.51 0.066 65.18
CV 0.85 0.75 0.91 <0.001 0.029 26.12 0.080 72.41 CV 0.60 0.08 0.87 0.017 0.024 27.23 0.067 75.48