By: Howcast
In this video, the instructor demonstrates the proper technique for performing a barbell curl, which is an effective exercise for building and strengthening the biceps. Starting with a straight posture, the video shows how to grip the barbell and maintain a controlled movement throughout the exercise. The instructor emphasizes the importance of contracting the biceps and not relying on momentum to lift the weight. This detailed tutorial provides helpful tips for beginners and offers a great refresher for those looking to improve their barbell curl form.