## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Site of Recording**} & \multirow{2}{*}{**Parameter**} & \multicolumn{3}{c}{**Control**} & \multicolumn{3}{c}{**Shooters**} & \multicolumn{1}{c}{\(p\)} \\ \cline{3-8}  & & **Right** & **Left** & **Right** & **Left** & **Right** & **Left** \\ \hline \multirow{8}{*}{DEL} & rEMG (\(\upmu\)V) & \(13.3\pm 4.3\) & \(15.0\pm 3.5\) & \(18.9\pm 5.4\) & \(18.3\pm 4.3\) & **0.05** & 0.06 \\  & mcEMG (\(\upmu\)V) & \(1522.2\pm 198.6\) & \(1567.0\pm 163.6\) & \(1211.1\pm 132.6\) & \(1522.0\pm 443.8\) & **0.03** & 0.13 \\  & FE & \(2.3\pm 0.5\) & \(2.3\pm 0.5\) & \(2.7\pm 0.4\) & \(2.3\pm 0.5\) & 0.06 & 0.12 \\ \cline{2-8}  & rEMG (\(\upmu\)V) & \(13.8\pm 3.3\) & \(16.1\pm 3.3\) & \(22.2\pm 6.6\) & \(18.3\pm 6.6\) & **0.02** & 0.07 \\  & bB & mcEMG (\(\upmu\)V) & \(1522.2\pm 454.0\) & \(1577.7\pm 484.1\) & \(1422.2\pm 840.8\) & \(1344.4\pm 769.9\) & 0.9 & 0.1 \\  & FE & \(2.7\pm 0.4\) & \(2.7\pm 0.4\) & \(2.3\pm 0.5\) & \(2.2\pm 0.4\) & **0.05** & **0.04** \\ \hline \multirow{8}{*}{APB} & rEMG (\(\upmu\)V) & \(13.9\pm 3.3\) & \(16.1\pm 3.3\) & \(18.9\pm 6.0\) & \(17.2\pm 7.5\) & **0.02** & **0.1** \\  & mcEMG (\(\upmu\)V) & \(1588.9\pm 459.4\) & \(1611.1\pm 428.4\) & \(1600.0\pm 107.2\) & \(1677.8\pm 902.4\) & 0.1 & 0.12 \\  & FE & \(2.8\pm 0.3\) & \(2.9\pm 0.3\) & \(2.6\pm 0.5\) & \(2.5\pm 0.5\) & 0.12 & 0.11 \\ \cline{2-8}  & \multirow{2}{*}{ADM} & rEMG (\(\upmu\)V) & \(14.9\pm 2.5\) & \(15.0\pm 3.5\) & \(18.3\pm 5.6\) & \(17.7\pm 6.6\) & **0.04** & 0.06 \\  & mcEMG (\(\upmu\)V) & \(1922.2\pm 120.4\) & \(2355.5\pm 111.7\) & \(1511.1\pm 459.4\) & \(1688.8\pm 348.0\) & **0.02** & **0.03** \\  & FE & \(2.8\pm 0.3\) & \(2.7\pm 0.4\) & \(2.7\pm 0.4\) & \(2.5\pm 0.5\) & 0.07 & 0.07 \\ \hline \multirow{8}{*}{APB} & M-wave & Amplitude (\(\upmu\)V) & \(11,111.1\pm 2204.7\) & \(11,111.2\pm 2227.6\) & \(8833.3\pm 3142.4\) & \(9888.9\pm 2027.6\) & **0.02** & **0.03** \\  & Wrist & Latency (ms) & \(3.0\pm 0.3\) & \(3.1\pm 0.2\) & \(3.6\pm 1.2\) & \(3.5\pm 0.9\) & **0.02** & **0.05** \\ \cline{2-8}  & M-wave & Amplitude (\(\upmu\)V) & \(977.7\pm 1487.3\) & \(972.8\pm 1394.4\) & \(7833.3\pm 3500.0\) & \(8333.3\pm 2397.9\) & **0.02** & **0.05** \\ \cline{2-8}  & FOC & Latency (ms) & \(6.4\pm 0.6\) & \(6.5\pm 0.5\) & \(7.1\pm 0.8\) & \(7.2\pm 0.6\) & 0.06 & 0.07 \\ \cline{2-8}  & M-wave & Amplitude (\(\upmu\)V) & \(11,222.0\pm 1986.1\) & \(11,111.0\pm 1900.3\) & \(9444.4\pm 4245.9\) & \(11,278.0\pm 2796.3\) & **0.02** & 0.06 \\ \cline{2-8}  & Arm & Latency (ms) & \(8.3\pm 0.4\) & \(8.4\pm 0.4\) & \(8.5\pm 1.0\) & \(9.0\pm 0.8\) & 0.06 & 0.07 \\ \cline{2-8}  & M-wave & Amplitude (\(\upmu\)V) & \(11,122.0\pm 1986.1\) & \(11,000.0\pm 2000.0\) & \(10,111.1\pm 669.8\) & \(12,811.1\pm 3206.0\) & 0.07 & 0.06 \\ \cline{2-8}  & Erb & Latency (ms) & \(10.7\pm 1.7\) & \(10.5\pm 1.0\) & \(13.5\pm 0.7\) & \(13.4\pm 0.9\) & **0.02** & **0.03** \\ \cline{2-8}  & SCV—wrist & Amplitude (\(\upmu\)V) & \(16.2\pm 6.8\) & \(14.7\pm 7.7\) & \(14.0\pm 10.0\) & \(11.5\pm 5.3\) & **0.05** & **0.03** \\ \cline{2-8}  & Latency (ms) & \(2.9\pm 0.1\) & \(2.9\pm 0.2\) & \(3.2\pm 0.6\) & \(3.3\pm 0.4\) & 0.06 & 0.07 \\ \hline \multicolumn{8}{c}{F-wave (\(\upmu\)V)} & F-wave (\(\upmu\)V) & \(17.8\pm 1.8\) & \(17.3\pm 2.0\) & \(15.6\pm 3.4\) & \(16.1\pm 3.4\) & **0.05** & 0.13 \\ \hline \multicolumn{8}{c}{M-F latency (ms)} & \(22.7\pm 2.0\) & \(23.9\pm 2.7\) & \(23.8\pm 2.7\) & \(24.6\pm 1.9\) & 0.07 & 0.06 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Results from neurophysiological studies in healthy subjects (N = 9) and shooters (N = 9). Median or mean values with standard deviations are presented. \(p\)—significant differences are marked bold. A simultaneous decrease in the activity of the motor units tested during maximal contraction was manifested in the shooters as a significant decrease in the mean amplitude parameter in the mcEMG recordings (compared to the normative results of the healthy volunteers).