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Table 1 Intra-observer and inter-observer reliability of variables measured directly during single leg stance test (SLS)

From: Parameterization and reliability of single-leg balance test assessed with inertial sensors in stroke survivors: a cross-sectional study

  Trunk Lumbar
  Intra-observer Inter-observer Intra-observer Inter-observer
Variable ICC IC (95%) ICC IC (95%) ICC IC (95%) ICC IC (95%)
Min. Max. Min. Max. Min. Max. Min. Max.
Left rotation Displacement (°) 0.912 0.891 0.928 0.908 0.887 0.920 0.927 0.905 0.948 0.915 0.901 0.927
Right rotation Displacement (°) 0.903 0.882 0.914 0.900 0.892 0.911 0.922 0.910 0.933 0.909 0.900 0.917
Rotation Mean Displacement (°) 0.921 0.907 0.931 0.917 0.907 0.926 0.937 0.920 0.955 0.928 0.909 0.941
Flexion Displacement (°) 0.889 0.870 0.903 0.879 0.840 0.901 0.897 0.879 0.915 0.889 0.878 0.903
Extension Displacement (°) 0.902 0.884 0.919 0.892 0.883 0.900 0.913 0.896 0.930 0.903 0.892 0.918
F/E mean Displacement (°) 0.893 0.880 0.899 0.878 0.867 0.899 0.896 0.886 0.908 0.870 0.861 0.884
Right inclination Displacement (°) 0.908 0.901 0.925 0.901 0.886 0.908 0.933 0.929 0.941 0.926 0.909 0.941
Left inclination Displacement (°) 0.915 0.902 9.31 0.903 0.891 0.923 0.949 0.923 0.960 0.940 0.927 0.958
R/L mean inclination Displacement (°) 0.909 0.898 0.927 0.898 0.883 0.910 0.928 0.910 0.940 0.907 0.896 0.919
Left rotation Velocity (°/s) 0.873 0.865 0.880 0.862 0.854 0.879 0.892 0.879 0.909 0.884 0.868 0.911
Right rotation Velocity (°/s) 0.863 0.852 0.870 0.860 0.849 0.874 0.888 0.873 0.901 0.880 0.870 0.891
Flexion Velocity (°/s) 0.881 0.870 0.902 0.874 0.861 0.886 0.879 0.863 0.892 0.863 0.852 0.871
Extension Velocity (°/s) 0.892 0.881 0.903 0.884 0.870 0.896 0.890 0.881 0.903 0.882 0.870 0.903
Right inclination Velocity (°/s) 0.855 0.843 0.867 0.849 0.831 0.862 0.873 0.861 0.887 0.869 0.855 0.878
Left inclination Velocity (°/s) 0.849 0.840 0.861 0.847 0.836 0.860 0.881 0.869 0.897 0.879 0.863 0.892
Resultant Velocity Right Side (°/s) 0.860 0.848 0.871 0.857 0.849 0.867 0.890 0.882 0.905 0.879 0.866 0.895
Resultant Velocity Left Side (°/s) 0.873 0.865 0.884 0.869 0.860 0.880 0.894 0.876 0.911 0.882 0.870 0.899