Exploring Defensive Skill Execution in Netball Using a Video-Based Checklist

Limited informative feedback on defensive skill execution during real-game situations highlights the need for performance analysis to optimize netball performance. This study aimed to explore the defensive technical skills demonstrated during actual gameplay to gain a deeper understanding of player movements during the defensive phase. A Video-Based Checklist for Defensive Skills (V-bDSC) was developed and required both content verification and usability validation through the analysis of real-game footage. The V-bDSC was concurrently verified and validated by observing and analysing defensive situations in a 5-min recorded video of a regional-level netball match. The analysis resulted in the inclusion of seven additional specific defensive skill items in the checklist. The categorization of defensive skill execution into three action groups (Main Defence, Assist Defence 1 and Assist Defence 2) proved appropriate for capturing the complexity of defensive roles. During centre pass defence, Main Defence players predominantly executed the Double Defence skills while Assist Defence 1 players employed Inside and Outside Defensive skills. After the centre pass was completed, Main Defence players frequently applied Marking and Zoning techniques. In contrast, Assist Defence 1 players favoured Off-Ball Marking, Off-Ball Zone and Front Position as primary defensive responses. Although the analysis was limited to a 5-min video segment, this study provides valuable insights and lays the groundwork for further investigation into defensive skill execution in competitive netball.