# Reliability of Critical Fitness Tests for Police Officers
## 3 Results
\begin{table}
\begin{tabular}{l c c c c c} \hline \hline \multirow{2}{*}{**Variables**} & \multirow{2}{*}{**Test (T1)**} & \multirow{2}{*}{**Retest (T2)**} & \multicolumn{2}{c}{**Diff. (T1 vs. T2)**} \\ \cline{2-5}  & **Mean \(\pm\) SD** & **Mean \(\pm\) SD** & **Mean \(\pm\) SD** & **ICC** & **SEM** \\ \hline HG left (kg) & 44.94 \(\pm\) 9.00 & 45.74 \(\pm\) 9.60 & \(-\)0.80 \(\pm\) 4.00 & 0.905 (0.865–0.933) & 0.36 \\ HG right (kg) & 46.76 \(\pm\) 9.47 & 47.64 \(\pm\) 9.68 & \(-\)0.88 \(\pm\) 3.85 & 0.916 (0.880–0.941) & 0.35 \\ HG sum (kg) & 91.70 \(\pm\) 18.04 & 93.38 \(\pm\) 18.87 & \(-\)1.68 \(\pm\) 6.54 & 0.934 (0.904–0.954) & 0.59 \\ HJ (m) & 2.27 \(\pm\) 0.23 & 2.26 \(\pm\) 0.22 & 0.01\(\pm\) 0.10 & 0.904 (0.865–0.932) & 0.01 \\
60 s of sit-ups (repetitions) & 53.68 \(\pm\) 8.04 & 55.61 \(\pm\) 7.56 & \(-\)1.93 \(\pm\) 4.31 & 0.824 (0.706–0.889) & 0.39 \\
20 m shuttle run (shuttles) & 71.24 \(\pm\) 20.08 & 74.16 \(\pm\) 20.30 & \(-\)2.92 \(\pm\) 9.01 & 0.892 (0.837–0.927) & 0.82 \\ VO\({}_{2}\)max (mL/kg/min) & 49.52 \(\pm\) 5.95 & 50.48 \(\pm\) 6.22 & \(-\)0.96 \(\pm\) 2.81 & 0.883 (0.822–0.922) & 0.25 \\ \hline \hline \end{tabular}  
* Key: HG, handgrip strength; HJ, horizontal jump; SD, standard deviation; T1, moment 1; T2, moment 2; ICC, intraclass correlation coefficient; SEM, standard error of the mean; VO\({}_{2}\)max, aerobic capacity.  
\end{table} 
Table 2: Reliability of fitness assessment for police academy cadets (n = 122). The study of the effect of sex on fitness performance (Table 4) shows that males presented significantly higher performance in all fitness evaluations compared to females  
Figure 3: Bland–Altman test applied to the variables (n = 122): handgrip strength sum—HG sum (**A**), horizontal jump—HJ (**B**), 60 s of sit-ups (**C**), and 20 m shuttle run (**D**). Key: The solid black line represents the difference average between the number of repetitions of the fitness test and retest. The black dashed lines represent the upper and lower 95% confidence limits. \begin{table}
\begin{tabular}{l c c c c c} \hline \hline \multirow{2}{*}{**Variables**} & \multicolumn{1}{c}{**Test (T1)**} & \multicolumn{1}{c}{**Retest (T2)**} & \multicolumn{3}{c}{**Diff. (T1 vs. T2)**} \\ \cline{2-7}  & **Mean \(\pm\) SD** & **Mean \(\pm\) SD** & **Mean \(\pm\) SD** & **ICC** & **SEM** \\ \hline
**Female** & & & & & \\ HG left (kg) & 34.25 \(\pm\) 4.19 & 34.34 \(\pm\) 4.77 & \(-\)0.09 \(\pm\) 2.42 & 0.858 (0.723–0.930) & 0.44 \\ HG right (kg) & 35.92 \(\pm\) 4.25 & 35.99 \(\pm\) 5.27 & \(-\)0.07 \(\pm\) 3.09 & 0.797 (0.615–0.898) & 0.56 \\ HG sum (kg) & 70.17 \(\pm\) 8.06 & 70.34 \(\pm\) 9.25 & \(-\)0.16 \(\pm\) 4.52 & 0.868 (0.741–0.935) & 0.83 \\ HJ (m) & 1.97 \(\pm\) 0.11 & 1.97 \(\pm\) 0.12 & 0.00 \(\pm\) 0.07 & 0.795 (0.613–0.897) & 0.01 \\
60 s of sit-ups (repetitions) & 50.83 \(\pm\) 8.12 & 52.73 \(\pm\) 7.71 & \(-\)1.90 \(\pm\) 3.18 & 0.896 (0.722–0.956) & 0.58 \\
20 m shuttle run (shuttles) & 54.43 \(\pm\) 14.95 & 57.07 \(\pm\) 17.24 & \(-\)2.63 \(\pm\) 8.43 & 0.856 (0.718–0.929) & 1.54 \\ VO\({}_{2}\)max (mL/kg/min) & 44.40 \(\pm\) 4.92 & 45.10 \(\pm\) 5.52 & \(-\)0.70 \(\pm\) 2.81 & 0.852 (0.715–0.927) & 0.51 \\ \hline
**Male** & & & & & \\ HG left (kg) & 48.42 \(\pm\) 7.22 & 49.46 \(\pm\) 7.65 & \(-\)1.04 \(\pm\) 4.38 & 0.820 (0.737–0.878) & 0.46 \\ HG right (kg) & 50.30 \(\pm\) 7.89 & 51.44 \(\pm\) 7.51 & \(-\)1.14 \(\pm\) 4.05 & 0.854 (0.780–0.903) & 0.42 \\ HG sum (kg) & 98.72 \(\pm\) 14.47 & 100.90 \(\pm\) 14.62 & \(-\)2.18 \(\pm\) 7.02 & 0.875 (0.807–0.918) & 0.73 \\ HJ (m) & 2.36 \(\pm\) 0.17 & 2.36 \(\pm\) 0.16 & 0.01 \(\pm\) 0.11 & 0.789 (0.697–0.855) & 0.01 \\
60 s of sit-ups (repetitions) & 54.61 \(\pm\) 7.83 & 56.54 \(\pm\) 7.31 & \(-\)1.93 \(\pm\) 4.63 & 0.789 (0.658–0.867) & 0.48 \\
20 m shuttle run (shuttles) & 76.72 \(\pm\) 18.48 & 79.73 \(\pm\) 18.05 & \(-\)3.01 \(\pm\) 9.24 & 0.862 (0.786–0.910) & 0.96 \\ VO\({}_{2}\)max (mL/kg/min) & 51.19 \(\pm\) 5.29 & 52.23 \(\pm\) 5.40 & \(-\)1.04 \(\pm\) 2.83 & 0.845 (0.753–0.901) & 0.29 \\ \hline \hline \end{tabular}
\end{table}