## 3 Results  
The results showed that the initial body temperature differed from the temperature after the warm-up (\(p\) < 0.001) and after RW (\(p\) = 0.007). The temperature after warming up differed from the temperature after passive rest (\(p\) < 0.001). Temperature changes are shown in Figure 3.  
Figure 2: Illinois agility test. The results for CMJ showed that the performance immediately after warming up differed significantly in both conditions (P (15 min): \(p\) < 0.001; 3 min RW: \(p\) = 0.01). The two conditions also differed from each other (\(p\) = 0.049, \(\eta^{2}\) = 0.575). Significant differences were also observed in the SJ test where the performance immediately after the warm-up differed from that after the passive rest (\(p\) < 0.001, \(\eta^{2}\) = 0.539). In the condition in which RW was applied, the decrease was 5.2% as opposed to the control condition (\(p\) (15 min)) where the decrease reached 8.9%. Changes in jump performance are shown in Figure 4.  
Figure 4: (**A**) CMJ performance test, (**B**) SJ performance test, (**C**). Agility performance test. Mean value and standard deviation are presented; % denotes percentage difference with Post WU; * denotes significant difference with P (15 min) at level \(p\) < 0.001; ** denotes significant difference with Post WU at level \(p\) < 0.01; # denotes significant difference with P (15 min) at level \(p\) < 0.05; WU, warm-up; P (15 min), passive rest for 15 min; 3 min RW, 12 min passive rest and 3 min re-warm-up. Figure 3: Changes in body temperature. Mean value and standard deviation are presented; * denotes significant difference with Pre WU at level \(p\) < 0.001; ** denotes significant difference with Pre WU at level \(p\) < 0.01; # denotes significant difference with Post WU at level \(p\) < 0.001; WU, warm-up; P (15 min), passive rest for 15 min; 3 min RW, 12 min passive rest and 3 min re-warm-up. In the agility test, no differences were observed between the two conditions (F = 3.557, \(p\) = 0.315, \(\eta^{2}\) = 0.151). The soccer players' performance on the Illinois test decreased similarly after both passive rest and RW. The change in performance in the agility test is shown in Figure 4.  
In the 10 m acceleration test, a significant negative effect of passive rest was observed (F = 16.935, \(p\) < 0.001, \(\eta^{2}\) = 0.435) with the reduction in performance reaching 5.8%. In the 30 m test, the performance of the two conditions (P (15 min) and 3 min RW) differed from the performance immediately after the warm-up (F = 30.807, \(p\) < 0.001, \(\eta^{2}\) = 0.583). The performance changes in the 10 m and 30 m tests are presented in Figure 5. Confidence intervals for jumps, sprints, and the Illinois test are presented in Table 3.  
Figure 5: (**A**) 10 m performance test, (**B**) 30 m performance test. Mean value and standard deviation are presented; % denotes percentage difference with Post WU; * denotes significant difference at level \(p\) < 0.001 with post-WU; WU, warm-up; P (15 min), passive rest for 15 min; 3 min RW, 12 min passive rest and 3 min re-warm-up. Significant differences were observed in the heart rate (HR) of the soccer players between the two conditions (P (15 min) and 3 min RW) in the first quarter of the two halves (\(p<\) 0.001). Furthermore, differences were observed between the two halves in each condition (\(p<\) 0.01). The mean of HR is presented in Figure 6.  
Regarding the running performance of the soccer players, no difference was observed between the two conditions (P (15 min) and 3 min RW) in all variables (total distance, TD; average HR, HR; distance per minute, D/min; distance covered in four different velocity zones, z1: 7-10.99 km/h--z2: 11-14.99 km/h--z3: 15-18.99 km/h--z4: \(>\)19 km/h; number of accelerations, n; number of decelerations, n). These results are presented in Figure 2:0 The statistical indicators are presented in Table 4