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Table 3 Summary of the reliability analyses of the G-theoretic approach

From: The potential use of spectral electromyographic fatigue as a screening and outcome monitoring tool of sarcopenic back muscle alterations

   D-value SEM Error variance
    absolute absolute
Initial MF     
All electrodes <50 0.70 5.98 35.80
>50 0.59 7.01 49.11
L5 <50 0.83 4.23 17.93
>50 0.87 4.28 18.33
L2 <50 0.87 4.85 23.53
>50 0.71 5.22 27.22
L1 <50 0.84 4.21 17.70
>50 0.84 3.31 10.94
Most negative electrode <50 0.84 4.30 18.52
>50 0.82 3.73 13.92
MF slope declines
All electrodes <50 0.70 0.11 0.012
>50 0.69 0.08 0.006
L5 <50 0.74 0.10 0.011
>50 0.74 0.08 0.006
L2 <50 0.79 0.09 0.008
>50 0.81 0.08 0.006
L1 <50 0.75 0.08 0.007
>50 0.62 0.06 0.004
Most negative electrode <50 0.64 0.12 0.015
>50 0.71 0.09 0.008
MF slope declines normalized to initial MF
All electrodes <50 0.69 0.12 0.014
>50 0.74 0.08 0.006
L5 <50 0.79 0.11 0.012
>50 0.74 0.08 0.006
L2 <50 0.79 0.09 0.009
>50 0.84 0.08 0.006
L1 <50 0.72 0.10 0.010
>50 0.62 0.08 0.006
Most negative electrode <50 0.60 0.13 0.016
  >50 0.78 0.09 0.008
  1. D-values are a type of an Intraclass Correlation coefficient (ICC), absolute SEM = absolute square root of the error variance.
  2. Note that for the individual MF-EMG measures, the type of decision is absolute.