Christian Castano on Instagram: "SHOULDER CRUSHER 🔥🔥💪🏼 This workout is all about building massive, well-rounded shoulders using a combination of supersets. By hitting your shoulders from different angles with minimal rest, you’ll maximize your time under tension and ignite muscle growth. Superset 1 Arnold’s Press (3 x 10 reps): A classic for a reason. This press hits all three heads of your deltoid—anterior, medial, and posterior—by combining a press with a rotation. • Dumbbell Lateral Raise

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