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.