“The best experience of HBO use as a recovery method from muscular fatigue occurred during the Nagano Winter Olympics with seven participating athletes. After physical activity, the athletes received HBO treatment for 30–40 minutes at 1.3 ATA, with a maximum of six times per athlete and an average of two times per athlete. An athlete who experienced tension and sharp pain of the abdominal muscles was able to play a game after HBO treatment with almost no pain. Another player who was experiencing anterior knee pain was treated within 2 days of injury and was able to perform afterwards with no difficulty. These test cases show that HBO treatments demonstrate high performance without adverse effects such as muscular pain and nerve paralysis. Players were also able to benefit from the conditioning effects of HBO treatment” <view study>