en شماره ویژه Special Issue_1 (#SI01) ویژه‌نامه Special Issue <div style="text-align: justify;"><strong>Background. </strong>High-intensity interval training (HIIT) is a popular method in football training aimed at enhancing ball-specific agility abilities. This study evaluated the effectiveness of linear HIIT (LHIIT) and change-of-direction HIIT (COD) protocols in improving these abilities in senior female football players.<br> <strong>Objectives. </strong>The main objective was to compare the impacts of LHIIT and COD HIIT programs on ball-specific agility performance metrics.<br> <strong>Methods. </strong>The study involved 60 senior female football players, divided equally into two groups: LHIIT (control) and COD (experimental). Initial and final measurements were conducted using ball-specific agility tests, specifically the M93639, M505, and M20-yard tests. Both groups participated in a four-week HIIT training program.<br> <strong>Results.</strong> Both HIIT programs significantly enhanced ball-specific agility in all measured variables. The LHIIT group showed slightly greater improvements in the M93639 test, while improvements in the M505 and M20-yard tests were identical between the two groups.<br> <strong>Conclusion.</strong> Both linear and COD HIIT protocols effectively enhance ball-specific agility in senior female football players. LHIIT showed a slight advantage in one of the specific agility tests, but overall, both types of HIIT programs contributed significantly to performance improvements. The study highlights the importance of integrating repetitive, explosive, and lower-body strength exercises, along with specific agility and plyometric drills, into HIIT protocols for optimizing physical conditioning and reducing injury risks in female football players. Coaches and sports scientists are encouraged to tailor training programs to meet the unique needs of female football players for optimal performance and injury prevention.</div> Soccer, Ball-Specific Agility, High-Intensity Interval Training, Performance, Female, Professional Athletes 0 0 http://aassjournal.com/browse.php?a_code=A-11-2326-4&slc_lang=en&sid=1 Aleksandar Miletić 100319475328460017483 100319475328460017483 No Preschool Teacher Training and Business Informatics College of Aplied Studies Sirmium, Sremska Mitrovica, Serbia Marko Erceg 100319475328460017484 100319475328460017484 No Faculty of Kinesiology, University of Split, Split Croatia Grgur Višić grgur.visic@student.kif.hr 100319475328460017485 0009-0002-9601-8725 Yes Department of General and Applied Kinesiology, Faculty of Kinesiology, University of Zagreb, Zagreb, Croatia Fredi Fiorentini 100319475328460017486 100319475328460017486 No Faculty of Kinesiology, University of Split, Split Croatia Damir Jurko 100319475328460017487 100319475328460017487 No Faculty of Kinesiology, University of Split, Split Croatia Goran Sporiš 100319475328460017488 100319475328460017488 No Department of General and Applied Kinesiology, Faculty of Kinesiology, University of Zagreb, Zagreb, Croatia Davorin Antonic 100319475328460017489 100319475328460017489 No Department of General and Applied Kinesiology, Faculty of Kinesiology, University of Zagreb, Zagreb, Croatia Halasi Szabolcs 100319475328460017490 100319475328460017490 No Hungarian Language Teacher Training Faculty, University of Novi Sad, Subotica, Serbia Robert Bobinec 100319475328460017491 100319475328460017491 No Department of General and Applied Kinesiology, Faculty of Kinesiology, University of Zagreb, Zagreb, Croatia Goran Vučković 100319475328460017492 100319475328460017492 No Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia