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. 2020 Aug 14;9(8):2647. doi: 10.3390/jcm9082647

Table 4.

Intra-rater reliability of the outcome measurements.

Outcome Measurements Cronbach α ICC (95% CI) SEM MDC
Right LM ROI EI (ROIEI) 0.968 0.968
(0.942–0.984)		 3.470 9.618
Left LM ROI EI (ROIEI) 0.974 0.974
(0.953–0.987)		 3.053 8.462
Right LM ROI EV (ROIEV) 0.969 0.967
(0.940–0.983)		 3.347 9.277
Left LM ROI EV (ROIEV) 0.853 0.855
(0.735–0.926)		 7.238 20.062
Right LM Pixels Count-CSA 0.268 0.268
(−0.338–0.627)		 18,845.066 52,235.860
Left LM Pixels Count-CSA 0.981 0.981
(0.965–0.990)		 3608.84 10,003.21
Right LM CSA EI (CSAEI) 0.974 0.975
(0.954–0.987)		 2.690 7.460
Left LM CSA EI (CSAEI) 0.969 0.970
(0.944–0.984)		 2.520 6.990
Right LM CSA EV (CSAEV) 0.969 0.969
(0.943–0.984)		 2.528 7.008
Left LM CSA EV (CSAEV) 0.958 0.960
(0.926–0.979)		 2.340 6.487
Right LM CSA at rest (CSARest) 0.968 0.968
(0.941–0.984)		 0.262 0.728
Left LM CSA at rest (CSARest) 0.972 0.972
(0.949–0.986)		 0.235 0.653
Right LM CSA during CAL (CSACAL) 0.982 0.982
(0.967–0.991)		 0.218 0.606
Left LM CSA during CAL (CSACAL) 0.947 0.947
(0.903–0.973)		 0.361 1.001
Right thoracolumbar fasciae (TLF) thickness (TH) 0.861 0.862
(0.748–0.930)		 0.015 0.043
Left thoracolumbar fasciae (TLF) thickness (TH) 0.904 0.897
(0.809–0.948)		 0.014 0.039
Right thoracolumbar fasciae (TLF) Likert-type Scale 0.968 0.966
(0.938–0.983)		 0.279 0.378
Left thoracolumbar fasciae (TLF) Likert-type Scale 0.955 0.957
(0.921–0.978)		 0.341 0.946
Right thoracolumbar fasciae morphology (TLF-MRPH) 0.720 0.725
(0.493–0.860)		 0.523 1.452
Left thoracolumbar fasciae morphology (TLF-MRPH) 0.859 0.852
(0.729–0.924)		 0.262 0.728

Abbreviations: EI, echointensity; EV, echovariation; CSA, cross-sectional area; CSAEI, echointensity of the cross-sectional area; CSAEV, echovariation of the cross-sectional area; CI, confidence interval (Lower and upper limits of the 95% CI); ICC, intra-class correlation coefficient; LM, lumbar multifidus; MDC, minimum detectable change; ROIEI, echointensity of the region of interest; ROIEV, echovariation of the region of interest; SEM, standard error of measurement.