Stand beside the landmine with your feet shoulder-width apart while grasping the end of the landmine barbell with the hand farther away from the landmine attachment, palm facing up and your elbow close to your side.
Curl the barbell up towards your opposite shoulder, contracting your bicep muscles, then slowly lower the barbell back down.
Repeat for the desired number of reps before switching sides.
Guide d'Exercice Landmine Bicep Curl - Entraînement Biceps | MuscleWiki