Rai, S., M. Shantaram, F. H. V. A., R. B. K. B., and V. B. P. “A Systematic Review on the Comparative Effectiveness of Positional Release Technique and Active Release Technique in Improving Hamstring Flexibility Among Athletes”. International Journal of Research in Medical Sciences, vol. 14, no. 6, May 2026, pp. 2561-7, doi:10.18203/2320-6012.ijrms20261703.