Effect of interval training on performance in long-distance runners affiliated with Japanese companies

The company-organized sports system in Japan employs athletes as regular staff, allowing them to balance work and sports. This system presents challenges, particularly in terms of limited training time. High-intensity interval training (HIIT), which delivers high training loads in short periods, is essential for these athletes. This study examined the impact of HIIT on the physical and psychological performance of a male long-distance runner, who was an Olympic representative, affiliated with a company. Over a 92-day period, the athlete’s performance was assessed through Training Achievement Scores, Physical Conditioning Scores, and Mental Conditioning Scores. Results indicated fluctuations in training and physical conditioning scores, highlighting the need for objective condition assessments and tailored mental conditioning strategies. Enhancing support systems and incorporating HIIT are crucial for athletes to be able to compete at international levels while managing injury risks and environmental stresses.