# A Predictive Model on the Intention to Accept Taekwondo Electronic Protection Devices
## 5 Discussion  
First, perceived quality has a significant influence on PEU and PU. In particular, in this study, perceived quality was found to be the most significant factor affecting PEU and PU--the quality of the TEPD has a direct effect on the competition. Considering that TEPDs are used to ensure fairness in the Taekwondo competition, efforts to enhance their perceived quality are critical. In the past, for example, Taekwondo athletes observed that a purportedly strong kick did not register a point, while weak force did [38]. These problems were raised as technical issues with TEPDs, among not only Taekwondo athletes but also spectators, as they expressed doubts about PEU and PU. Therefore, efforts should be made to maintain a consistent standard of TEPD quality and to enhance athletes and spectators' perception of the device's quality through continuous technical development. Second, visual attractiveness does not have a significant influence on the PEU and PU. [PERSON] et al. 's study [39] supports these results, as their research shows that there is no significant relationship between the appearance and performance of TEPDs. The appearance of various TEPD brands is similar; moreover, their design is similar to that of a typical product without the electronic components. Therefore, this study confirms that the visual attractiveness that Taekwondo athletes perceive does not have a significant effect on their PEU and PU. Third, wearability has a significant positive influence on PEU, while it has a significantly negative (-) effect on PU. Taekwondo competition scoring happens quickly over a short period. Taekwondo athletes are very sensitive to this movement and therefore, the higher the TEPD wearing sensibility, the greater the PEU. Conversely, wearability has been shown to have a negative effect on PU. This indicates that Taekwondo athletes tend to recognize highly wearable TEPDs as good products and believe that the latest updated TEPDs will easily record the score of opponent strikes on themselves. Therefore, it seems that the higher the wearing sensation, the less useful it will be. More importantly, [PERSON] and [PERSON] [40] indicate that TEPD wearability is a leading factor that significantly affects Taekwondo performance. Therefore, manufacturing companies must maintain the product condition and continue to make efforts to improve its material and technical ability to improve product durability. Fourth, functionality does not have a significant influence on the PEU and PU. Considering that the function of TEPDs is to ensure fairness in competitions [41], this study confirms that PEU and PU are not recognized for functions other than this purpose. Given that some individuals did not trust the functioning of the earlier versions of the TEPD because of their technical issues [42], TEPD manufacturers need to focus more on the development of products that enhance fairness in their functionality. Fifth, PEU has a significant influence on PU and acceptance intention. There were many technical problems with the initial model of the device, including errors with the sensor recognition process during use. However, recent improvements in material development and technical skills have improved athletes' competency and provided them with motivation and objective feedback. Electronic systems help analyze the performance, strength, and functional capacity of athletes, and assist in improving their skills and monitoring these improvements. Additionally, these systems help develop strategies, motivate athletes, and provide objective feedback [43]. PEU of TEPDs, athletes' PU, and acceptance intention are also judged to have increased. Sixth, PU has a significant influence on acceptance intention. As TEPDs have been used in all recent international competitions, one can expect that the higher the PU of the TEPD, the more the acceptance intention increases. Notably, the rules have been gradually amended to increase athletes' acceptance of the TEPD since its introduction [44].