santj49 New member Aug 10, 2011 #22 A good mass builder for arms, are single arm dumbell curls on a preacher. Grab a heavy weight and do NEGATIVES. With your other arm lift the dumbell for the first part of the curl and let it go down slowly. You will feel the bicept get worked.
A good mass builder for arms, are single arm dumbell curls on a preacher. Grab a heavy weight and do NEGATIVES. With your other arm lift the dumbell for the first part of the curl and let it go down slowly. You will feel the bicept get worked.
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