BREATH- HOLDING DRILLS ON OXYGEN UTILIZATION AND FATIGUE RESISTANCE AMONG SWIMMING ATHLETES

Swimming requires out standing cardiovas cularendurance,muscularstrength,and efficien to xygenuse.To enhance performance and delay fatigue, athletes are exploring innovative training methods, with breath-holding drills gaining attention. Breath-holding, or voluntary apnea, can induce physiological adaptations beneficial to athletes, suchas improving anaerobic performance as shown by ameta-analysis. Controlled-frequency breath (CFB) training in swimming improves muscular oxygen utilization and respiratory muscle strength. Recent studies have found that inspiratory muscle resistance training combined with strength training enhances gas exchange capacity and reduces inspiratory muscle fatigue in artistic swimmers. The mammalian diving reflex, triggered by breath-holding and facial immersion in cold water, can slightly improve endurance. However, breath-holding techniques carry risks, like potential blackouts from hyperventilation before submersion.When used correctly, breath-holding drills can be beneficial, as respiratory muscle training improves swimming endurance. Systematic reviews indicate that apnea training leads to physiological adaptations, increasing tolerance to high intensity efforts and improving recovery. In Southeast Asia, research on breath-holding drills among swimmers is emerging, with a study in Indonesia showing that specific breathing strategies can influence swimming velocity and efficiency.