# Reliability of Critical Fitness Tests for Police Officers
## 4 Discussion
It is also worth noting that it is close to the upper limit, almost reaching the maximum excellent reliability level (between 0.90 and 1.00). Regarding the SEM, variables are considered reliable when less than one [21], and our results showed that the SEM of the four fitness tests carried out was 0.45. Therefore, the fitness assessment protocol is considered reliable to apply to POs (whether female or male) since the ICC values of the variables presented in Table 3 (separated by sex) are all within the high-reliability range defined by [PERSON] et al. [20]. Nevertheless, in the comparison between sexes, it was found that (i) in the HG sum and the 20 m shuttle run, the ICC of males was slightly higher than that of females; (ii) the ICC of female participants was higher in HJ and 60 s of sit-ups; and (iii) the 60 s sit-up test presents the greatest ICC discrepancy. In the SEM, it was noted that (i) the 20 m shuttle run test (only in the female sample) was greater than one (1.54), with the rest being lower; (ii) the HJ test was equal (0.01) for both sexes and lower in males in the remaining tests. Regarding the results of the fitness tests, it is essential to position them considering the results that appear in the literature to have a vision of cadets' fitness profile concerning international studies with the same population. Since we have values from two evaluation moments (test and retest), the best results were considered for this comparison. It was observed that female cadets (i) in the HJ test reached 1.97 m, and this result is considerably superior to the investigation by [PERSON] et al. [22], which presented 1.82 m, but slightly lower than the study by [PERSON] et al. [23], where they obtained 1.99 m; (ii) in the HG sum, our study presented 70.34 kg, and considering the study by [PERSON] et al. [23], in which they reached 70.79 kg, we see that the two performances are very close; (iii) in the 60 s of sit-ups, participants achieved 52.73 repetitions, and this performance is higher than the 36 repetitions completed in the investigation by [PERSON] et al. [24] and the result of 46.83 repetitions observed by [PERSON] et al. [25]; and (iv) in the 20 m shuttle run test, the cadets managed 57.07 shuttles, slightly lower than the 59.70 shuttles presented in the study by [PERSON] et al. [23]. In summary, regarding females, this study always presents higher values considering existing international data, specifically in the HJ and 60 s sit-up tests. In comparison to national data, mainly collected in the study by [PERSON] et al. [23], which is the reference in this target population, we found that despite having achieved lower values (in HG, HJ, and 20 m shuttle run tests), they are very close. It should be noted that, regarding the 20 m shuttle run test, we chose to highlight the results through the number of shuttles completed (instead of the indirect VO\({}_{2}\)max), since, according to [PERSON] et al. [26], given the multiple existing prediction equations, it is advisable to present the performance of this test through the number of shuttles. Nevertheless, when analyzing the result of the VO\({}_{2}\)max variable, we found that we reached 45.10 mL/kg/min in our study, which was superior to 42.85 mL/kg/min observed by [PERSON] et al. [23]. Now, analyzing the performance of the male cadets, it was observed that (i) in the HJ, cadets reached 2.36 m, and this value is higher than the 2.33 m in the investigation by [PERSON] et al. [22] but lower than the 2.43 m in the study by [PERSON] et al. [23]; (ii) in the HG, 100.90 kg was obtained in the sum of both hands, which is also lower than that presented by [PERSON] et al. [23], at 109.43 kg; (iii) in the 60 s of sit-ups, 56.54 repetitions was achieved and, considering two international studies, this performance is considerably higher than that achieved by [PERSON] et al. [24], with a mark of 44 repetitions, and [PERSON] et al.