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Arm Muscle Exercises : The Dumbbell Concentration Curl Arm Exercise

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Uploaded by on Apr 27, 2007

Learn how to do dumbbell concentration curls and the proper technique for concentration curls in this free how-to video on arm exercises.

Expert: Manny Castro
Bio: Manny Castro received his BS in Health Education/ Exercise Physiology and Athletic Training from Florida International University, and completed several internships in cardiac rehab, and strength and
Filmmaker: Manuel Castro

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