1
Stand upright with feet shoulder-width apart, core engaged, and neutral spine. Hold a dumbbell in one hand with arm extended at side, palm facing forward.
2
Maintain a stable stance with knees slightly bent. Keep the elbow fixed at your side throughout the movement. Grip the dumbbell firmly with a neutral to supinated grip position.
3
Slowly lower the dumbbell by extending the elbow, controlling the weight on the descent. Keep the upper arm stationary and allow the forearm to extend fully without locking the elbow at the bottom.
4
Drive the dumbbell upward by flexing the elbow, bringing the weight toward the shoulder. Squeeze the biceps at the top of the movement, then return to the starting position with controlled motion.