This is a simple free weight shoulder exercise.
Instructions
Start this exercise standing with your feet shoulder width a part. Arms should be bent at a 90 degree angle with your hands up towards the ceiling. Have two dumbbells gripped in each hand.
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Slowly exhale and bend forearms forward until they are level with your shoulders. Hold for 2 seconds.
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Inhale and return arms back to start position to complete one full rep.
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Start with 10-12 reps, and minimal weights. Increase weights as you progress. Always ensure that your shoulders do not shrug at all during this exercise.