Table 1. Parameters obtained during and after maximal voluntary isometric contraction (MVIC) when the anode was positioned over the gluteal fold (GF) or midway between the greater trochanter and the lower border of the iliac crest (Mid
troc-iliac).
|
GF |
Midtroc-iliac |
Cohens’ d |
MVIC force (N) |
794 ± 128 |
780 ± 131 |
0.11 |
Qtwpot (N) |
183 ± 23 |
189 ± 22 |
0.28 |
Qtws (N) |
16.8 ± 13.6 |
14.6 ± 13.0 |
0.17 |
VA (%) |
90.8 ± 7.0 |
92.3 ± 6.6 |
0.24 |
VL M-wave (mV) |
During MVIC |
6.60 ± 5.07 |
6.60 ± 4.26 |
0.00 |
After MVIC |
6.23 ± 4.02 |
6.19 ± 4.06 |
0.01 |
VM M-wave (mV) |
During MVIC |
9.81 ± 3.98 |
9.22 ± 3.23 |
0.17 |
After MVIC |
8.78 ± 5.29 |
9.11 ± 5.69 |
0.06 |
RF M-wave (mV) |
During MVIC |
4.36 ± 1.90 |
4.04 ± 1.79 |
0.18 |
After MVIC |
3.20 ± 2.12 |
3.24 ± 2.34 |
0.02 |
BF M-wave (mV) |
During MVIC |
1.64 ± 1.32 |
0.43 ± 0.20** |
1.33 |
After MVIC |
1.34 ± 0.63 |
0.47 ± 0.25*** |
1.91 |
Qtw
pot: Potentiated single twitch; Qtw
s: Superimposed single twitch; VA: Voluntary activation level; VL: Vastus lateralis; VM: Vastus medialis; RF: Rectus femoris; BF: Biceps femoris** and ***: Significant different from values for anode placed over the GF at p < 0.01 and p < 0.001, respectively.