Sit tall with legs extended, arms holding straps at shoulder height.
Start with arms straight, palms facing up, shoulders relaxed.
Bend elbows, curling hands toward shoulders without moving torso.
Extend arms slowly, maintaining control and constant tension on straps.
Przewodnik Ćwiczenia Preparos de Remada para Costas Roscas de Bíceps Sentadas - Trening Bíceps | MuscleWiki