Effects of a Tactical Critical Thinking Program on Tactical Efficiency in Elite Underwater Rugby Male Players

Inclusion Criteria: * 24 elite male underwater rugby (UWR) players. * Members of the reigning world club champions (August-October 2023). * Selected via a non-probabilistic method based on convenience and feasibility. * Required to have no musculoskeletal injuries at the start of the study. * Maintained a minimum attendance rate of 80% during pre-intervention training sessions. * Demonstrated consistent commitment throughout the study. Exclusion Criteria: * Active musculoskeletal injuries at the start of the study that could affect performance. * Recent history of surgery or severe injuries within the past six months. * Attendance below 80% in pre-intervention training sessions. * Lack of commitment to the study, demonstrated by low engagement or inconsistent participation in training. * Pre-existing medical conditions that could limit participation in high-intensity activities. * Insufficient competitive experience, meaning players without prior participation in high-level tournaments. * Use of prohibited substances or doping methods as per current sports regulations. * Simultaneous participation in another training programme, which could interfere with the study's intervention.