The Effect of Maxex Training on Leg Power Moderated by Vertical Jump Time: An Experimental Study on Adolescent Volleyball Players. - Mulyanto, Taufik Yudi; Gery, Muhammad Ishaq; Jannah, Andi Miftahul; Saputra, Yudi Dwi; Yudhistira, Dewangga (Balneo & PRM Research Journal, 2026)