Hi, I just found out about the bicep workout called Dumbbell 21's. I had a question for anyone who has tried this workout. How many reps of these should I do per workout?
Posted on 28 January 2010.
Hi, I just found out about the bicep workout called Dumbbell 21's. I had a question for anyone who has tried this workout. How many reps of these should I do per workout?
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