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Table 2 Paired t- test p-values and Cohen’s d values for comparison of VC and ES IZ row number at different contraction levels and stimulus intensities: p-value (Cohen’s d value)

From: Innervation zone distribution of the biceps brachii muscle examined using voluntary and electrically-evoked high-density surface EMG

Contraction Levels 40% Imax 60% Imax 80% Imax 100% Imax
20% MVC 0.351 (0.35) 0.267(0.43) 0.270(0.42) 0.270(0.42)
40% MVC 0.067(0.76) 0.060(0.79) 0.065(0.81) 0.056(0.81)
60% MVC 0.012(1.18) 0.007(1.32) 0.006(1.37) 0.007(1.37)
80% MVC 0.007(1.32) 0.005(1.45) 0.004(1.48) 0.004(1.48)
100% MVC 0.019(1.08) 0.019(1.09) 0.015(1.13) 0.015(1.13)
  1. Entries in boldface indicate a statistically significant difference (p < 0.05)