Background: Kumite is a physical contact fight in a karate match characterized by short explosive and intermittent movements. Kumite needs endurance, power, and agility. To achieve optimal performance, special training must be programmed. Purpose: This study aims to test the content validity of the HIIT training program that was created in a special preparation to improve the dominant motor components, namely endurance, power, and agility in the performance of Kumite athletes. Methods: This is development research with a quantitative approach. This research was carried out in 3 stages. The first stage was to analyze journals, eBooks, and textbooks to design a HIIT program. This was followed by the second stage in the form of the Delphi technique by meeting directly with experts to conduct an assessment of the HIIT program created. The third stage is data analysis using the content validity ratio (CVR) formula to test content validity. Participants consisted of 10 experts and documents. Results: The results of the content validity test using the content validity ratio (CVR) formula found that all assessment items from 10 experts showed CVR values of 0.8 and 1.00. In other words, the assessment results can be categorized as having high content validity.
Conclusion:The HIIT training program in special preparation to improve the dominant biomotor components of endurance, power, and agility developed by the author has high content validity so it is suitable for use in karate athletes, especially Kumite.