Dumbbell Cuban Shoulder Rotations
Dumbbell Cuban Shoulder Rotations are a compound mobility exercise that combines an upright row with external rotation to strengthen the rotator cuff and posterior deltoids. This movement is essential for bulletproofing the shoulders and improving posture by targeting the often-neglected muscles of the upper back.
Iridium scans your 7-day workout history to ensure sub-muscle groups like the external rotators are not pre-exhausted from recent heavy pressing. To maintain the effectiveness of this technical movement, the algorithm calculates load based on RPE trends to prioritize control and stability over heavy progressive overload.
Form Cues
- Raise elbows until they are level with your shoulders
- Rotate your forearms upward while keeping elbows fixed in place
- Squeeze your shoulder blades together throughout the movement
- Control the descent slowly to maximize stability
- Don't let your elbows drop below shoulder height during rotation
- Don't use momentum to swing the weights up
- Don't arch your lower back excessively
- Don't shrug your shoulders up toward your ears
Common Mistakes
- Using weight that is too heavy
- Dropping elbows during the rotation phase
- Rushing through the movement
- Hyperextending the lumbar spine
Muscles Worked
This exercise primarily targets the posterior deltoids and the external rotators of the rotator cuff (infraspinatus and teres minor). It also engages the rhomboids and trapezius to stabilize the scapula, making it highly effective for correcting forward-rounded shoulders.
Primary
Secondary
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