George Abraham2 and Gobind Singh3, P.S. Sankaranarayanan1,. “Progressive, Fluctuated and Regressive Resistance Training and Its Impact on Lower Extremity Strength”. Recent Research in Science and Technology 3, no. 3 (March 5, 2011). Accessed April 29, 2024. https://updatepublishing.com/journal/index.php/rrst/article/view/640.