Which Part of the Biceps Do Different Curls Train? Hammer, Regular, Wide, and Peak Training

Which Part of the Biceps Do Different Curls Train? Hammer, Regular, Wide, and Peak Training
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Truth Rating

Disproven
Disproven

The claims oversimplify bicep anatomy and training. While different curls can emphasize certain muscles, you can't truly isolate parts like 'length' or 'peak'.

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Claim Breakdown:

📝 Fact Check: A hammer curl doesn't train the 'length' of your biceps. 📏 This term is anatomically inaccurate. What it actually does is emphasize the brachialis muscle, which lies underneath the main biceps brachii, and the brachioradialis in the forearm. A well-developed brachialis can push the biceps up, making the arm appear thicker.

Fact Check Date: June 22, 2026

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