Dian Musrianto; Lungit Wicaksono; Joan Siswoyo; Heru Sulistianta. The Relationship Between Leg Muscle Power And Waist Flexion On Sickle Kick Ability In Male Students Of Pencak Silat Extracurricular SMAN 1 Terusan Nunyai Central Lampung Regency. JPJ 2026, 6, 554-562.