## 4 Discussion  
PT methods are widely used to improve muscle strength to generate explosive strength [31]. The results of this study, shown in Table 1, indicate that 8 weeks of a PT program could effectively improve the physical fitness of elite male basketball players. Figure 3: Results of the CMJ test for participant No. 1. The BMI and BFP of all participants had decreased in the post-test results, and the SMM increased. This result is similar to many studies [8; 9; 44; 45]. Increasing PT from low-intensity to high-intensity significantly increases aerobic and anaerobic fitness; after the 8-week program, the participants exhibited enhanced oxidative and glycolytic properties, their intrinsic SMM characteristics had changed, and some muscle fibers transformed into fast-twitch muscles, significantly increasing the SMM [22]. It has also been confirmed that the sports performance of muscle strength or explosive strength depends on muscle mass [4]. Similarly, because basketball players frequently jump, loading the antigravity muscles, many studies have reported the benefits of a shift in fiber type composition [46]. Thus, performing training results in a significant reduction in the fat percentage, accompanied by an increase in lean body mass [47]. Table 2 indicates that, comparing participants' pre- and post-test values for the 20 m sprint and the T-agility run, the PT program was found to have a significant effect on the speed, agility, and explosive strength performance of elite college basketball players, consistent with many prior studies [17; 27; 32; 48; 49; 50; 51]. Some studies have identified that PT affects muscle length, strength, and flexibility to increase speed [52]; further studies have also demonstrated that the increase in muscle mass and muscle fiber hypertrophy caused by PT may lead to the increased speed of participants [53]. In this study, PT had a significant impact on agility. Some scholars have recognized that PT will affect muscle spindles, Golgi tendons, tendons, and body posture control [54], thereby improving agility in the participants [55]. Based on the above effects of PT on speed and agility, the results of this study confirm that PT had a positive impact on athletes' jumping, sprint performance, and lower-body muscle strength and confirm the effectiveness of PT in improving agility (speed of changing directions) and sprinting in basketball players [10; 19]. Table 3 shows the test results obtained with the force plate. It was found that PT improved the participants' explosive strength. Comparing the pre- and post-test values in the experiment, the RFD, time of RFD, GRF at the moment of jumping, the duration of passage, and jump height all exhibited significant improvements. The RFD is the speed at which participants perform the CM) to generate the maximum force, and the RFD is another important indicator for basketball players to enhance their sports performance. In this study, RFD could be regarded as the slope (r) of force-time, and the slopes for all participants in the post-test ranged from \(-0.816\) to \(-0.963\), showing that the slope of all participants was steep, presenting a centripetal force curve, indicating an excellent RFD, which was consistent with many other studies [56; 57; 58]. The time taken by the participants in this study was between 0.113 and 0.241 s. The length of time spent performing the RFD was in line with that of elite athletes, and it is worthy of further discussion. Research by [PERSON] et al. pointed out that the time for an average person to exert all their strength to produce the maximum force time is approximately 400 milliseconds [59]. However, this is too long for many sports. For vertical jumping, the time allowed for the soles of the feet to be in contact with the ground is approximately 200 milliseconds [60]. Research by [PERSON] et al.