## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{2}{*}{**Variable**} & \multicolumn{3}{c}{**Male**} & \multicolumn{3}{c}{**Female**} & \multicolumn{3}{c}{**Total**} \\ \cline{2-10}  & \(\leq\)**18 Years** & **3-18 Years** & **Total** & \(\leq\)**18 Years** & **?-18 Years** & **Total** & \(\leq\)**18 Years** & **?-18 Years** & **Total** \\  & (**n = 89**) & (**n = 45**) & (**n = 134**) & (**n = 58**) & (**n = 15**) & (**n = 73**) & (**n = 147**) & (**n = 60**) & (**n = 207**) \\ \hline Age (yrs) & 15.5 \(\pm\) 1.4 & 20.2 \(\pm\) 1.3 ** & 17.1 \(\pm\) 2.6 & 15.2 \(\pm\) 1.4 & 20.5 \(\pm\) 1.6 ** & 16.3 \(\pm\) 2.6 & 15.3 \(\pm\) 1.4 & 20.3 \(\pm\) 1.4 ** & 16.8 \(\pm\) 2.7 \\ Height (cm) & 184.5 \(\pm\) 7.4 & 189.8 \(\pm\) 6.9 ** & 186.3 \(\pm\) 7.7 & 171.9 \(\pm\) 7.1 & 178.4 \(\pm\) 5.1 ** & 173.3 \(\pm\) 7.2 & 179.5 \(\pm\) 9.5 & 187.0 \(\pm\) 8.2 ** & 181.7 \(\pm\) 9.7 \\ Weight (kg) & 76.5 \(\pm\) 18.1 & 91.1 \(\pm\) 16.3 ** & 81.4 \(\pm\) 18.8 & 63.2 \(\pm\) 9.3 & 71.5 \(\pm\) 8.8 ** & 64.9 \(\pm\) 9.7 & 71.3 \(\pm\) 16.6 & 86.2 \(\pm\) 17.0 ** & 75.6 \(\pm\) 18.0 \\
0 BMI (kg/m\({}^{2}\)) & 22.4 \(\pm\) 4.4 & 25.3 \(\pm\) 4.6 ** & 23.3 \(\pm\) 4.7 & 21.3 \(\pm\) 2.2 & 22.4 \(\pm\) 2.1 & 21.5 \(\pm\) 2.2 & 21.9 \(\pm\) 3.7 & 24.6 \(\pm\) 4.3 ** & 22.7 \(\pm\) 4.1 \\ Training years of experience & 2.0 \(\pm\) 1.3 & 5.5 \(\pm\) 1.7 ** & 3.2 \(\pm\) 2.2 & 2.3 \(\pm\) 1.6 & 4.5 \(\pm\) 2.6 ** & 2.8 \(\pm\) 2.0 & 2.1 \(\pm\) 1.4 & 5.2 \(\pm\) 2.0 ** & 3.0 \(\pm\) 2.1 \\ Training hours daily & 4.2 \(\pm\) 2.0 & 5.8 \(\pm\) 2.6 ** & 4.7 \(\pm\) 2.3 & 4.3 \(\pm\) 1.8 & 5.3 \(\pm\) 2.3 & 4.5 \(\pm\) 1.9 & 4.2 \(\pm\) 1.9 & 5.7 \(\pm\) 2.5 ** & 4.6 \(\pm\) 2.2 \\ Training days weekly & 6.2 \(\pm\) 0.9 & 5.8 \(\pm\) 1.4 & 6.1 \(\pm\) 1.1 & 6.5 \(\pm\) 0.6 & 5.1 \(\pm\) 1.4 ** & 6.2 \(\pm\) 1.0 & 6.3 \(\pm\) 0.8 & 5.6 \(\pm\) 1.4 ** & 6.1 \(\pm\) 1.1 \\ Training hours weekly & 25.4 \(\pm\) 12.2 & 35.4 \(\pm\) 18.0 ** & 28.8 \(\pm\) 15.1 & 28.1 \(\pm\) 12.4 & 29.5 \(\pm\) 16.7 & 28.4 \(\pm\) 13.2 & 26.5 \(\pm\) 12.3 & 33.9\(\pm\) 17.7 ** & 28.6 \(\pm\) 14.4 ** \\ Training sessions & 297.7 \(\pm\) & 277.9 \(\pm\) & 291.0 \(\pm\) & 311.6 \(\pm\) & 246.4 \(\pm\) & 298.2 \(\pm\) & 303.2 \(\pm\) & 270.0 \(\pm\) & 293.6 \(\pm\) \\ a year & 41.0 & 68.4 & 52.4 & 27.2 & 67.6 & 46.6 & 36.7 & 69.0 * & 50.5 \\ Training hours a & 1219.4 \(\pm\) & 1697.9 \(\pm\) & 1380.1 \(\pm\) & 1350.3 \(\pm\) & 1414.4 \(\pm\) & 1363.5 \(\pm\) & 1271.1 \(\pm\) & 1627.0 \(\pm\) & 1374.2 \(\pm\) \\ year & 584.2 & 862.2 ** & 723.3 & 593.2 & 799.9 & 635.4 & 589.3 & 849.4 ** & 692.1 \\ Total training sessions a year & 26,496 & 12,504 & 39,000 & 18,072 & 3696 & 21,768 & 44,568 & 16,200 & 60,768 \\ Total training & 108,528 & 76,404 & 184,932 & 78,316.8 & 21,216 & 99,532.8 & 186,844.8 & 97,620 & 284,464.8 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Basic information of rowing athletes by gender and age. Table 2 shows rowing injury mechanisms and types broken down by gender and age. Among all 131 cases of rowing-related injuries, 51 cases (38.9%) were acute-onset injuries, while 80 cases (61.1%) were gradual-onset injuries, and the ratio of acute to chronic injuries was 1:1.57. Moreover, regardless of gender and age, the incidence of gradual-onset injuries was higher than that of acute-onset injuries. Regarding the mechanism of injury, independent of gender, strength training frequently caused acute-onset injuries (males: 14.5%; females: 19.4%). However, among males aged \(\leq\)18 years and among females aged \(\leq\)18 years, strength training frequently caused acute-onset injuries, while water training frequently caused acute-onset injuries among males and females \(>\)18 years of age. As for the anatomical sites, the lower back was the most common injury site, accounting for 39.7% (52 cases), followed by the knee (27 cases; 20.6%) and the shoulder (13 cases; 9.9%).