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Amazing Arms

Get your arms in their best shape by working their two major muscle groups: the biceps and triceps.

David Martinez, Text: Brad Schoenfeld

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Overhead Dumbbell Extension

Stand comfortably with a slight bend in your knees, and hold an 8- to 15-pound dumbbell by the stem (place one hand on the stem, and the other hand on top of it), and lift it above your head so your arms are almost straight, with your upper arms next to your ears. Slowly bend your elbows and lower the weight behind you head, then straighten your arms back above your head.

Training Guide: Do 3 sets of 8 to 12 repetitions.