International Journal of Clinical Case Reports, 2026, Vol.16, No.2, 84-91 http://medscipublisher.com/index.php/ijccr 90 increasing amount of research that shows HIIT is a time-efficient, successful training method for young people and emphasise its applicability to coaches and sport scientists who want to maximise performance results. 6 Limitations and Future Directions It is important to recognise a number of limitations despite the positive outcomes. First, there may be limitations on generalisability due to the small sample size (n=40) and its restriction to a specific sporting demographic. Second, self-reported external physical activities and training adherence may have introduced bias. Third, injury incidence, recovery indices, and perceived exertion were not tracked, despite the measurement of physiological outcomes. Long-term HIIT programs, larger and more varied cohorts, recovery techniques, and psychological reactions to high-intensity exercise should all be examined in future studies. Acknowledgments Abhishek Balo and Pranjit Baruah conceived and designed the study. Abhishek Balo and Tonkey Pegu were responsible for data collection and experimental implementation. O. Jiten Singh performed the statistical analysis and interpreted the data. Sidhartha Rajbongshi drafted the manuscript. Pabitra Pran Gogoi and Arindom Baruah revised the manuscript critically for important intellectual content. Mantu Baro supervised the study. All authors read and approved the final version of the manuscript. Conflict of Interest Disclosure The authors affirm that this research was conducted without any commercial or financial relationships that could be construed as a potential conflict of interest. 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