Table 4 Descriptive statistics for instrumented standing balance results including ICCs and 95% confidence intervals
Healthy controls | Persons with multiple sclerosis | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Day 1 Mean (StD) | Day 2 Mean (StD) | ICC | 95% CI bounds | Day 1 Mean (StD) | Day 2 Mean (StD) | ICC | 95% CI bounds | |||
ρ | Lower | Upper | ρ | Lower | Upper | |||||
Jerk | 0.096 (0.042) | 0.084 (0.045) | 0.880 | 0.642 | 0.960 | 0.105 (0.065) | 0.126 (0.110) | 0.858 | 0.578 | 0.952 |
Distance | 0.058 (0.021) | 0.055 (0.014) | 0.788 | 0.368 | 0.929 | 0.067 (0.022) | 0.070 (0.034) | 0.919 | 0.759 | 0.973 |
Area | 0.003 (0.001) | 0.003 (0.001) | 0.832 | 0.500 | 0.944 | 0.004 (0.002) | 0.004 (0.004) | 0.891 | 0.675 | 0.963 |
RMS | 0.071 (0.025) | 0.065 (0.017) | 0.790 | 0.375 | 0.929 | 0.078 (0.024) | 0.083 (0.039) | 0.895 | 0.687 | 0.965 |
Path length | 4.893 (0.953) | 4.769 (1.255) | 0.895 | 0.687 | 0.965 | 5.516 (1.631) | 5.543 (1.936) | 0.884 | 0.655 | 0.961 |
Range | 0.369 (0.101) | 0.345 (0.104) | 0.731 | 0.200 | 0.910 | 0.384 (0.103) | 0.407 (0.192) | 0.809 | 0.430 | 0.936 |
Mean velocity | 0.140 (0.063) | 0.143 (0.056) | 0.699 | 0.105 | 0.899 | 0.152 (0.085) | 0.164 (0.075) | 0.807 | 0.426 | 0.935 |
Mean frequency | 0.497 (0.150) | 0.466 (0.108) | 0.795 | 0.389 | 0.931 | 0.461 (0.130) | 0.440 (0.121) | 0.900 | 0.703 | 0.967 |
95% frequency | 1.735 (0.474) | 1.718 (0.302) | 0.672 | 0.024 | 0.890 | 1.630 (0.316) | 1.538 (0.375) | 0.853 | 0.561 | 0.951 |
Frequency dispersion | 0.783 (0.036) | 0.781 (0.037) | 0.151 | −1.528 | 0.715 | 0.748 (0.040) | 0.753 (0.039) | 0.438 | −0.675 | 0.811 |