## 4 Discussion  
The main findings of this study indicate that the CMJA and the linear sprinting test over 10 and 20 m showed an excellent absolute reliability and good to excellent relative reliability, along with a low MDC. In contrast, although the SL-CMJ exhibits good absolute reliability, it is characterized by a notably higher MDC, particularly for the left leg, which also shows a poor-excellent relative reliability. Position-specific analysis revealed that Bigs demonstrated higher absolute reliability in SJ, CMJ and SL-CMJ, while Guards showed better absolute reliability in CMJA. Regarding relative reliability, Bigs have showed better ICC than Guards in SJ, CMJ, and CMJA and in 10 and 20 m linear sprint. Meanwhile, Guards exhibited better reliability in SL-CMJ in both right and left leg, as well as in 5 m linear sprinting test. Therefore, due to the ability of these tests to detect neuromuscular changes during the preseason, these findings encourage basketball physical coaches to use these jumping and sprinting tests to assess preseason neuromuscular performance. The good to excellent relative reliability and the high absolute reliability together with the low CV, SEM, and MDC obtained in the jumping test CMJ and SJ, and the sprinting test over 10 and 20 m allows us to indicate the high sensitivity that these tests have to detect significant improvements in neuromuscular performance. This aspect is of great importance due to the small differences that have a big impact on professional sport [31]. In addition, these results highlight the importance of these tests for assessing speed and explosive capacity in basketball players, particularly given the role of sprinting and jumping in game scenarios [4]. Our results are very similar to those from [PERSON] et al. [7] who also found high reliability in both CMJ and CMJA in NCAA Division I basketball players, with low coefficients of variation < 10% and ICC > 0.70 in both types of jumps. These findings align with previous research indicating that the commonly used neuromuscular performance tests, such as the CMJ and linear sprint tests, show high reliability in controlled conditions [9; 32]. The strong absolute reliability of these tests suggests that they can be confidently used to monitor players' performance over time with minimal concern for measurement errors. In line with our findings, [PERSON] et al. 's [33] results showed that the 10 m linear sprint test is highly reliable with a low MDC, in male junior rugby players. In fact, their ICC ranges between 0.86 and 0.92, depending on the starting technique used. These ICC values are similar to the ones we found. They reported an MDC of 1%, a clearly lower value than ours, and that other researchers like [PERSON] et al. [34] who found an MDC ranging from 1.9% to 2.6%, in physical education students. Based on these differences, it would be ideal to use dual beam timing gates systems, requiring the simultaneous breaking of two beams to register a valid time. Although it is a non-realistic procedure in most of the sports clubs around the world. In addition, [PERSON] et al. [35] found a similar trend than us regarding linear sprinting test reliability. The longer the distance, the higher the reliability (higher ICC and lower CV). Our results show a much lower CV than theirs (10 m: 0.1 vs. 1.37%; 20 m: 0.1 vs. 0.96%). However, it is worth noting that their study sample was composed by a recreational sports practitioner, showing women a lower reliability (lower ICC and higher CV) than men. Based on these data, even though in basketball 5 m sprints are much more specific [36], reliability tends to be lower. Therefore, it is necessary to analyze the trade of about specificity and reliability, or as we did, to gather the data of both distances. Conversely, the SL-CMJ demonstrated good absolute reliability, but higher MDC percentages, particularly for the left leg.