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. 2014 Jul 21;9(7):e102753. doi: 10.1371/journal.pone.0102753

Table 2. Absolute values for voluntary activation (%), biceps femoris (BF) and medial hamstrings (MH) normalized electromyograms (EMG/M, %), the amplitude of the resting potentiated twitch (RT), time to peak twitch (TPT), and half-relaxation time of the resting twitch (1/2 RT) during the SAFT90.

First-half(minutes) VA (%) BF EMG/M (%) MH EMG/M (%) RT (Nm) TPT (ms) ½ RT (ms)
0 97.1±2.2 5.2±1.8 4.7±2.1 26.8±5.9 110.1±8.2 63.0±11.2
15 98.0±3.2 4.2±1.5 4.9±2.4 25.3±6.6 104.9±9.2 65.0±19.5
30 98.4±2.6 3.5±0.8 4.3±2.1 25.6±6.1 108.3±11.0 68.4±20.8
45 96.5±3.5 3.6±1.2* 4.4±2.3 25.3±5.9 105.4±10.1 67.6±20.0
Second-half (minutes)
0 97.6±3.2 3.4±1.3 4.1±2.0 23.3±5.3 102.8±10.1 65.9±14.1
15 95.7±2.4 3.7±1.3 4.2±1.7 24.6±6.5 104.0±10.6 70.3±21.7
30 96.5±3.4 3.2±1.4 4.2±2.2 24.9±6.6 105.3±13.3 69.4±22.6
45 96.8±2.9 2.9±1.1* 3.9±2.7 24.6±7.6 108.3±14.1 71.5±23.4

*is p<0.05 for the main effect of time for a reduction from the start of the half. Data are mean ± SD.