Muscle: Pectoralis
Step 1: Lie flat on the bench with feet on the floor for stability, your arms extended upward, and your hands facing in toward each other holding the dumbbells: Inhale and lower the dumbbells to chest level, bending your elbows and rotating your forearms to bring your hand in pronation Press the dumbbells back up and do an isometric contraction to isolate the stress on the pectorals; exhale as you complete the movement.
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