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Table 3 NMF slope t -tests for left and right lateral isometric hold tests (mean ± SD)

From: Trunk muscle fatigue during a lateral isometric hold test: what are we evaluating?

Muscles Left lateral isometric hold test Right lateral isometric hold test
  df NMFslope P df NMFslope P
   (% s-1) values   (% s-1) values
Left rectus abdominis 19 −0.025 ± 0.054 0.018 20 −0.037 ± 0.043 0.001
Right rectus abdominis 18 −0.032 ± 0.038 0.001 20 −0.026 ± 0.023 0.001
Left external oblique 18 −0.056 ± 0.037 0.001 20 −0.014 ± 0.026 0.0106
Right external oblique 19 −0.017 ± 0.030 0.009 20 −0.051 ± 0.039 0.001
Left L2 erector spinae 20 −0.023 ± 0.031 0.001 20 −0.034 ± 0.054 0.0041
Right L2 erector spinae 20 −0.043 ± 0.051 0.001 20 −0.025 ± 0.029 0.001
Left L5 erector spinae 20 −0.031 ± 0.053 0.0011 17 −0.051 ± 0.031 0.001
Right L5 erector spinae 18 −0.064 ± 0.048 0.001 20 −0.025 ± 0. 055 0.022