If your concentration curls feel sloppy, the problem isn’t the curl - it’s your setup. An unstable leg creates momentum, not tension. Drill your foot into the floor, tighten everything up, and the elbow stays “locked” in place. That’s when concentration curls actually hit the biceps. #bicepworkout #concentrationcurl #armday #gymtips #bodybuilding #workoutform #fitnesscoach #musclebuilding #mindmuscleconnection #maikwiedenbach | Maik Wiedenbach