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Bicep Curl Machine. The bicep curl machine is one of the best exercises to help beginners understand the action of the bicep muscle. Using an arm curl machine ensures that your biceps get an intense workout. There are many differe.
This means that bicep curls work all areas of the bicep muscle. Also known as straight bar curls, they extend to working the shoulders and triceps, as well. This exercise is also known as dumbbell curls, kettlebell curls or barbell curls, if you are using the appropriate weights. 1  Main Muscle Used: Biceps. 2  Secondary Muscles: Shoulders, Triceps. 3  Equipment Required: Dumbbell, Kettlebell or Barbell.  Movement: 1  Isolated. Exercise Type: Pull.