The research aims to identify the effectiveness of special exercises on the anaerobic lactic power index, transitional speed, and agility of advanced futsal players. The experimental method was used, and a group was designed for pre- and post-testing. The research population consists of 14 advanced players from Al-Masafi Club. The main section (first part), from Jan 16, to Mar 18, 2026 the training sessions were held. The sessions lasted for 8 weeks, comprising 20 training sessions, each lasting no more than 35 minutes. The interval training method was used. The calculated t-values were 2.331 (p=0.045) for anaerobic capacity; 6.658 (p=0.000) for transitional speed; and 3.257 (p=0.008) for agility. This research indicated that the specialized interval training workouts greatly increased the ability of expert futsal players to produce anaerobic lactic acid These exercises also improved speed and agility in transitions which shows that they are beneficial for the quick multidirectional performance that is needed in tactical phases in the game The research suggests that experienced futsal players should include these specialized interval training activities in their training routines since they help improve physical skills It also stresses the need for making training activities that fit with energy production systems and an emphasis on the anaerobic lactic acid system, because that's what the game needs particularly during high-intensity bursts of play that are common in futsal matches