Arnold Dumbbell Shoulder Press Exercise
1. Sit on the end of a flat bench or use a shoulder press bench for support and place your upper torso at a 90-degree angle with you feet flat on the floor. Grip a dumbbell in each hand and hold them at shoulder level with you palms facing out and weights parallel to the floor. Keep your head up and look forward into a mirror.
2. Press the dumbbells up and slightly in and over the top of your head. Your arms should be straight but not locked out. Do not let the dumbbells slam together. Hold for one second. Slowly, lower the weights to the shoulders and repeat.
3. Exhale as you press the weights up; inhale as you lower the weight down.
Note: This exercise can also be performed with a barbell.