## 4 Discussion
### Body Composition  
The findings of this study underscore the positive effects of glyometric training on body composition among professional boxers. After eight weeks of training, both the Plyometric Stair Jump (PSJ) and Plyometric Reaction Box Jump (PRJ) groups exhibited statistically significant reductions in body weight and body fat percentage. More notably, the PSJ group experienced a greater reduction in body weight, indicating that this training modality may be more effective in improving body composition parameters. These results are consistent with those of [PERSON] et al. (2016) [55], who reported that Plyometric Jump Training (PJT) can significantly improve lean mass and reduce fat mass, particularly among young male athletes. Their meta-analysis highlighted the versatility of PJT in eliciting adaptations related to muscular development and metabolic efficiency. Furthermore, [PERSON] et al. (2009) [56] demonstrated that glyometric training is at least as effective as complex training in enhancing strength and power, and may yield superior results in maximal strength development when external load is applied. The observed reductions in body fat percentage are especially important in sports like boxing, where strength-to-weight ratio, agility, and speed are critical for performance. A lower body fat percentage improves relative strength and energy efficiency, allowing athletes to generate more power with less physiological load. These benefits are primarily attributed to neuromuscular adaptations induced by the stretch-shortening cycle (SSC), which glyometric exercises are specifically designed to exploit [52].  
Moreover, beyond compositional changes, glyometric training is associated with muscular architecture and power output enhancements. According to [PERSON] and [PERSON] (2013) [57], such adaptations can also contribute to increased maximal oxygen consumption (VO\({}_{2}\)max), endurance, and overall athletic functionality. These improvements may offer competitive advantages and contribute to injury prevention and long-term athletic development. In summary, the current study reinforces the value of glyometric training as an effective strategy for optimizing body composition and athletic performance in elite combat athletes. These findings support integrating structured glyometric protocols--especially stair jump variations--into boxing-specific training programs. The present study's findings reaffirm the efficacy of glyometric training in enhancing body composition. The Plyometric Stair Jump (PSJ) and Plyometric Reaction Box Jump (PRJ) groups demonstrated statistically significant improvements in body weight and body fat percentage following the eight-week intervention. These results underscore the role of glyometric training as a performance-enhancing modality and an effective method for body composition regulation. Consistent with the prior literature, glyometric training reduced fat mass while promoting lean muscle development and improving athletic performance [58].  
In this study, a significant reduction in body weight and fat percentage was observed following the 8-week glyometric training program. However, due to the lack of comprehensive data on participants' dietary habits, weekly routine boxing training, and in-season weight management strategies, attributing these changes solely to the glyometric training should be approached with caution. As noted in the literature, changes in athletes' performance and physical composition often result from the interaction of multiple factors [59]. Therefore, future research is recommended to examine diet and other training loads under controlled conditions.