# Effect of Different Local Vibration Durations on Knee Extensors' Maximal Isometric Strength
## 3 Results
### MVIC and Central Fatigue Markers
\begin{table}
\begin{tabular}{l c c c c c c c c c c} \hline  & \multicolumn{2}{c}{**1 Min**} & \multicolumn{2}{c}{**3 Min**} & \multicolumn{2}{c}{**6 Min**} & \multicolumn{2}{c}{**\(p\)-Values/ES (pn\({}^{3}\))**} \\  & & **PRE** & **POST** & **PRE** & **POST** & **PRE** & **POST** & **PRE** & **POST** & \(C\times T\) & \(C\times D\times T\) \\ \hline
**MVIC (N-m)** & _CONT_ & \(225.1\pm 83.7\) & \(225.9\pm 77.6\) & \(2209\pm 83.8\) & \(2104\pm 75.7\) & \(209.5\pm 73\) & \(205.8\pm 72.0\) & \(192.01\pm 01.19\) & **0.045\(\pm 0.275\)** & 0.379\(\pm 0.072\) \\  & _LV_ & \(211.2\pm 87.7\) & \(213.2\pm 82.6\) & \(215.85\pm 7.51\) & \(212.2\pm 75.1\) & \(209.3\pm 76.8\) & \(216.5\pm 76.8\) & \(204.6\pm 0.91\) & 0.043\(\pm 0.139\) & 0.113\(\pm 0.182\) & 0.837\(\pm 0.014\) \\
**VAL (s)** & _CONT_ & \(87.2\pm 10.1\) & \(85.9\pm 10.4\) & \(86.6\pm 10.3\) & \(86.4\pm 8.9\) & \(88.3\pm 86.1\) & \(85.1\pm 84.0\) & 0.043\(\pm 0.139\) & 0.113\(\pm 0.182\) & 0.837\(\pm 0.014\) \\  & _LV_ & \(84.5\pm 10.8\) & \(84.0\pm 12.2\) & \(86.3\pm 84.4\) & \(84.4\pm 8.5\) & \(85.3\pm 86.6\) & \(85.1\pm 84.4\) & 0.043\(\pm 0.139\) & 0.113\(\pm 0.182\) & 0.837\(\pm 0.014\) \\
**RMS\({}_{\text{MVIC}}\)-M\({}^{-1}\) RF (s)** & _UV_ & \(6.61\pm 2.5\) & \(5.88\pm 1.96\) & \(6.5\pm 2.44\) & \(5.92\pm 2.07\) & \(6.57\pm 2.88\) & \(6.39\pm 2.87\) & & \\
**RMS\({}_{\text{MVIC}}\)-M\({}^{-1}\) VL (s)** & _UV_ & \(4.94\pm 3.0\) & \(5.09\pm 3.34\) & \(5.52\pm 4.09\) & \(4.85\pm 3.25\) & \(4.69\pm 3.2\) & \(4.75\pm 31.7\) & 0.737\(\pm 0.014\) & 0.533\(\pm 0.031\) & 0.695\(\pm 0.028\) \\
**RMS\({}_{\text{MVIC}}\)-M\({}^{-1}\) VL (s)** & _UV_ & \(56.89\pm 39.6\) & \(54.1\pm 4.28\) & \(4.89\pm 31.5\) & \(4.47\pm 25.7\) & \(4.9\pm 26.67\) & \(5.51\pm 2.99\) & 0.147\(\pm 0.137\) & 0.522\(\pm 0.032\) & 0.659\(\pm 0.032\) \\
**T\({}_{\text{TB}}\) (N-m)** & _CONT_ & \(50.1\pm 24.7\) & \(50.4\pm 24.6\) & \(4.44\pm 24.9\) & \(4.45\pm 24.6\) & \(4.58\pm 25.3\) & \(4.7\pm 23.3\) & & \\  & _LV_ & \(43.6\pm 23.1\) & \(42.2\pm 27.7\) & \(4.44\pm 19.9\) & \(4.42\pm 21.6\) & \(4.58\pm 25.3\) & \(4.7\pm 23.3\) & & \\ \hline
**FD\({}_{\text{POT}}\) (N-m)** & _CONT_ & \(82.2\pm 23.2\) & \(84.4\pm 24.8\) & \(80.6\pm 24.6\) & \(80.2\pm 23.3\) & \(80.82\pm 23.28\) & \(77.7\pm 21.9\) & 0.321\(\pm 0.084\) & 0.229\(\pm 0.109\) & 0.147\(\pm 0.137\) \\  & _LV_ & \(80.5\pm 24.6\) & \(81.4\pm 24.4\) & \(88.7\pm 25.9\) & \(82.8\pm 25.8\) & \(79.14\pm 23.4\) & \(79.6\pm 24.36\) & \(79.6\pm 24.6\) & & \\  & _CDT_ & \(125.1\pm 16.8\) & \(149.3\pm 20.5\) & \(149.8\pm 15.2\) & \(15.0\pm 18.7\) & \(143.2\pm 14.4\) & \(145.2\pm 12.7\) & **0.015\(\pm 0.319\)** & 0.982\(\pm 0.000\) & 0.256\(\pm 0.100\) \\
**TPT (s)** & _LV_ & \(144.5\pm 16.9\) & \(143.9\pm 16.9\) & \(139.7\pm 13.8\) & \(152.1\pm 17.4\) & \(148.9\pm 18.8\) & \(51.19\pm 23.2\) & & \\  & _CONT_ & \(81.8\pm 18.9\) & \(82.2\pm 18.1\) & \(89.7\pm 36.8\) & \(91.8\pm 30.0\) & \(91.54\pm 32.4\) & \(95.3\pm 40.3\) & **0.024\(\pm 0.250\)** & 0.280\(\pm 0.089\) & 0.231\(\pm 0.109\) \\
**HRt (ms)** & _LV_ & \(83.0\pm 92.6\) & \(96.2\pm 43.9\) & \(97.5\pm 36.8\) & \(91.7\pm 29.6\) & \(86.18\pm 34.6\) & \(86.6\pm 41.5\) & & \\  & _CONT_ & \(2.34\pm 07.1\) & \(2.4\pm 0.75\) & \(22.4\pm 0.88\) & \(2.23\pm 0.86\) & \(2.41\pm 0.55\) & \(2.14\pm 0.71\) & 0.619\(\pm 0.036\) & 0.299\(\pm 0.083\) & 0.882\(\pm 0.010\) \\
**PP RF (mV)** & _LV_ & \(21.2\pm 0.72\) & \(22.4\pm 0.84\) & \(2.24\pm 0.6\) & \(2.25\pm 0.61\) & \(2.18\pm 0.75\) & \(2.26\pm 0.86\) & & \\
**FP VL (mV)** & _CONT_ & \(4.98\pm 1.74\) & \(4.98\pm 1.78\) & \(4.71\pm 26.2\) & \(4.73\pm 27.7\) & \(4.38\pm 1.79\) & \(4.32\pm 1.71\) & 0.432\(\pm 0.053\) & 0.399\(\pm 0.055\) & 0.946\(\pm 0.004\) \\  & _LV_ & \(4.28\pm 2.6\) & \(4.39\pm 2.66\) & \(4.9\pm 1.89\) & \(4.69\pm 1.83\) & \(4.83\pm 2.7\) & \(4.79\pm 2.78\) & & \\ \hline \end{tabular}
\end{table} 
Table 1: Central (MVIC, VAL, RMS\({}_{\text{MVIC}}\)-M\({}^{-1}\) RF and VL, T\({}_{\text{SD}}\)) and peripheral (FD\({}_{\text{TOT}}\), TPR, PR, PP, FP VL) fatigue markers for the 14 subjects.