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. 2013 Aug 26;8(8):e72482. doi: 10.1371/journal.pone.0072482

Table 1. Values of neuromuscular function parameters before and after fatigue according to the intensity of the fatiguing exercise.

Parameter Intensity Pre-fatigue Post-fatigue % change
MVIT (N⋅m) 25 113.3±21.8 79.0±23.7*** −30.2
50 109.3±23.1 83.1±18.4*** −24.0
75 110.8±20.7 97.8±18.6*** −11.7
Doublet peak torque (N⋅m) 25 34.8±8.6 31.6±7.6*** −9.4
50 33.3±9.0 31.5±7.8*** −5.6
75 34.7±8.5 34.2±9.0 −1.5
Doublet contraction time (s) 25 0.125±0.008 0.122±0.012 −1.9
50 0.126±0.012 0.153±0.029*** +21.5
75 0.125±0.008 0.151±0.023*** +20.6
Doublet half-relaxation time (s) 25 0.089±0.012 0.120±0.027*** +35.6
50 0.088±0.013 0.189±0.040*** +114.9
75 0.095±0.033 0.162±0.053*** +70.1
Voluntary activation (%) 25 94.4±9.0 84.0±14.3*** −11.1
50 95.3±7.5 92.1±9.9 −3.4
75 93.9±8.6 93.9±8.2 +0.1

Values are means ± SD. MVIT: maximal voluntary isometric torque.

***

significantly different from pre-fatigue values (p<0.001).

% change significantly different from the two other intensities (p<0.05).

% change significantly different from 75% (p<0.05).