# User Assessment of a Customized Taekwondo Athlete Performance Cyber-Physical System
## 5 Discussion  
The analysis of the closed-ended responses, which included seven questions, revealed that the category \"Totally Disagree\" did not receive any responses, while the option \"I disagree\" obtained only 3% of the responses. On the other hand, the category \"I do not agree nor disagree\" accumulated 9% of the responses, while the options \"I agree\" and \"I totally agree\" received 37% and 51% of the responses, respectively (Figure 9). The analysis of the responses by question revealed that the majority of participants agreed or strongly agreed with the statements presented. For example, 60% of the participants agreed that the system's configuration and installation process was simple, while 40% strongly agreed with this statement. Furthermore, 70% of the participants agreed that the provided instructions were clear and understandable, and 60% agreed that the system accurately captured their movements (Figure 10). The set of open-ended questions comprises ten questions, with the initial four questions serving the purpose of delineating the cohort of athletes who participated in the online survey. The remaining open-ended questions afford athletes the opportunity to articulate their viewpoints and, if they so desire, propose alterations and enhancements to the system or its implementation methodology. Thematic analysis was utilized to analyze the open-ended questions in the questionnaire, as it is a method that facilitates both inductive and deductive approaches. This  
Figure 11: Findings from the examination of open responses of the survey using thematic analysis (orange for positive answers, green for negative answers). method proves to be beneficial in converting qualitative survey data into a binary interpretation by identifying common themes and categorizing responses as either yes or no. By employing coding and theme development, this method allows for the establishment of clear criteria to determine yes or no responses, ultimately enhancing the reliability and validity of the interpretation [49]. Based on the results obtained in this section of the form (Figure 11), it is feasible to establish the following conclusions. The specific Taekwondo movements evaluated (Jirugui, Ap Tchagi, Bandal Tchagiu, Miro Tchagiu) were considered suitable by 100% of the participants for assessing athletes' performance. These movements are fundamental in the discipline and allow for a comprehensive evaluation of athletes' technical skills. The majority of participants (75%) did not encounter difficulties or challenges when performing the movements with the equipment used. However, some suggested that the equipment be adapted to better fit the arms and legs, and that applying maximum force without a target could be uncomfortable. All participants (100%) expressed confidence in the system's accuracy in capturing their movements. It is believed that the accuracy will further improve with the continuous development of the program. The testing environment was considered suitable by 100% of the participants, providing appropriate conditions for accurate performance assessment. However, it is suggested that the use of a target bag could further enhance the testing protocol. The majority of participants (75%) proposed improvements, such as more compact and lightweight sensors attached to the extremities to prevent them from coming off during training, and the possibility of using the system in competitive environments. Overall, the experience of using the system and applying the testing protocol was positively evaluated by all participants (100%). The project was considered promising, useful for improving athletes' performance in various disciplines, and intuitive to use.