## 3 Results
Statistical analysis  
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & \multicolumn{2}{c}{**Body Area**} & \multicolumn{3}{c}{**Mean \(\pm\) SD [\({}^{\circ}\)C]**} & \multicolumn{3}{c}{**Student’s \(t\)-Test**} \\  & \multicolumn{2}{c}{**Right/Left**} & & \multicolumn{2}{c}{**T\({}_{\text{pre}}\)**} & \multicolumn{2}{c}{**T\({}_{\text{post}}\)**} & \multicolumn{2}{c}{**T\({}_{\text{post}}\)**} \\ \hline  & & **R** & & 32.92 \(\pm\) 0.59 & 25.97 \(\pm\) 1.94 & 12.8828 & 0.0000 *** \\ \cline{3-8}  & \multirow{2}{*}{**A**} & & **L** & & 32.99 \(\pm\) 0.63 & 26.00 \(\pm\) 2.11 & 12.4208 & 0.0000 *** \\ \cline{3-8}  & & **R** & & 31.35 \(\pm\) 0.76 & 23.76 \(\pm\) 1.72 & 18.5029 & 0.0000 *** \\ \cline{3-8} \multirow{2}{*}{ \begin{tabular}{c} **Upper** \\ Limb** \\ \end{tabular}  } & & **L** & & 31.43 \(\pm\) 0.82 & 23.26 \(\pm\) 1.59 & 22.7050 & 0.0000 *** \\ \cline{3-8}  & \multirow{2}{*}{**Fr**} & & **R** & & 32.17 \(\pm\) 0.55 & 25.14 \(\pm\) 2.45 & 10.8496 & 0.0000 *** \\ \cline{3-8}  & & **L** & & 32.01 \(\pm\) 0.87 & 24.97 \(\pm\) 2.44 & 12.0104 & 0.0000 *** \\ \cline{3-8}  & & **R** & & 32.43 \(\pm\) 0.58 & 25.63 \showed no significant differences between temperatures in selected areas in relation to the sides of the body, both before and after PBC. Another element of the study was the search for the relationship between the magnitude of temperature changes in response to cryostimulation and the values of individual body composition parameters. It was shown that most factors such as the BMI value, lean body mass, muscle mass, and absolute body water content did not significantly affect the changes in the body temperature of football players after the PBC procedure. Interestingly, it was observed that the absolute and percentage body fat content of players correlated with the magnitude of temperature changes in some areas of the body after PBC. This relationship was noticed for the anterior and posterior skin temperature of the thighs, where the temperature change after PBC was greatest (Figures 4 and 5). Similar relationships were noted for the anterior surface of the lower shank area (r = 0.556; \(p\) = 0.039 FAT [kg] and r = 0.571; \(p\) = 0.033 FAT [%]), knees (r = 0.538; \(p\) = 0.047 FAT [kg]), and forearms (r = 0.666; \(p\) = 0.009 FAT [kg] and r = 0.7108; \(p\) = 0.004 FAT [%]) as well as the chest (r = 0.636; \(p\) = 0.014 FAT [kg] and r = 0.625; \(p\) = 0.17 FAT [%]) and abdomen (r = 0.536; \(p\) = 0.048 FAT [kg]). The most important relationships between FAT and \(\Delta\)TPre/post of selected areas of the body after PBC were presented in the Figures 6 and 7. The magnitude of change in the surface skin temperature of the thighs turned out to be also significantly dependent on body water content and blood pressure. Negative values of the correlation coefficient between the anterior and posterior surfaces of the thighs and body water percentage (r = \(-\)0.582; \(p\) = 0.029 and r = \(-\)0.725; \(p\) = 0.003, respectively) and positive ones with the blood pressure value were obtained (Figures 8 and 9). Moreover, %TBW turned out to be a significant factor in the case of changes in the temperature also for other areas of the body, of the anterior surface of the knee joint (r = \(-\)0.588; \(p\) = 0.27), the anterior and posterior surfaces of the arm (r = \(-\)0.617; \(p\) = 0.19 and r = \(-\)0.534; \(p\) = 0.49, respectively), the anterior surface of the forearm (r = \(-\)0.711; \(p\) = 0.004), the chest (r = \(-\)0.735; \(p\) = 0.003), the abdomen (r = \(-\)0.667; \(p\) = 0.09), and the upper back (r = \(-\)0.533; \(p\) = 0.05). The most important relationships between %TBW and \(\Delta\)TPre/post of selected areas of the body after PBC are presented in the Figure 10.  
Figure 4: Relationship between body fat percentage and the magnitude of change in temperature of the anterior and posterior surfaces of the thighs. Figure 5: Relationship between body fat content and the magnitude of change in temperature of the anterior and posterior surfaces of the thighs.