Table 2. Peak EMG of maximum voluntary isometric contractions for each timepoint.
EMG
Parameters
Intervention Baseline 2s 4min 8min 12min ANOVA Time
(p-Value)
Mean SD Mean SD Mean SD Mean SD Mean SD
Peak EMG [mV] RF PAPEV 1.55 1.37 1.46 1.16 1.35 1.23 1.35 1.13 1.36 1.16 0.108
PAPEE 1.50 1.10 2.90 1.64 1.39 1.00 1.50 1.10 1.58 1.00 0.001
VM PAPEV 1.44 1.24 1.47 1.24 1.41 1.25 1.38 1.25 1.45 1.25 0.519
PAPEE 1.52 0.91 2.94 1.41 1.42 0.85 1.55 0.92 1.52 0.81 0.006
VL PAPEV 1.29 1.26 1.36 1.28 1.22 1.20 1.28 1.27 1.27 1.21 0.115
PAPEE 1.28 0.76 2.99 1.20 1.17 0.72 1.90 0.78 1.21 0.70 0.002
net-EMG PAPEV 1.05 0.95 1.06 0.92 0.98 0.90 0.99 0.92 1.01 0.89 0.203
PAPEE 1.18 0.62 2.37 0.88 1.03 0.59 1.13 0.64 1.08 0.55 0.002
p-Value < 0.05 indicated by bold values, RF: Rectus femoris, VM: Vastus medialis, VL: Vastus lateralis, net-EMG: overall activation of the quadriceps muscle, PAPEE: Post-activation performance enhancement (electrical CC), PAPEV: Post-activation performance enhancement (voluntary CC).