The effect of a 4-week plyometric training exercise on specific physical fitness components in U21 novice volleyball players. - Longakit, Jet; Aque Jr., Felix M.; Toring-Aque, Lyndie; Lobo, Joseph; Ayubi, Novadri; Mamon, Ranel; Coming, Lloyd; Padilla, Desiree Kate; Mondido, Christian Alex; Sinag, Jay Mark; Geanta, Vlad Adrian; Sanjaykumar, Swamynathan (Pedagogy of Physical Culture & Sports, 2025)