Kadamovich , S. A. “EFFECTIVENESS OF A SPECIALIZED BLOCK-BASED TRAINING MODEL FOR DEVELOPING PHYSICAL FITNESS OF SCHOOL-AGE ATHLETES THROUGH WEIGHTLIFTING”. Mental Enlightenment Scientific-Methodological Journal, vol. 7, no. 04, May 2026, pp. 607-14, doi:10.37547/mesmj-V7-I4-68 .