Dumbbell External Rotation
The dumbbell external rotation is a rotator cuff for the shoulders (deltoids), done with dumbbells. It also works the upper back (lats and rhomboids). It is trained one side at a time. On weyt.ai it counts toward Balance as Shoulders (minimum 6 sets per 30 days) and toward your 12-week strength trend at the weight you log.
At a glance
| Muscle group | Shoulders |
|---|---|
| Primary muscles | shoulders (deltoids) |
| Secondary muscles | upper back (lats and rhomboids) |
| Equipment | Dumbbell · one side at a time |
| Logged as | Reps per set |
| Strength scoring | Counts as a lift |
| Balance group | Shoulders · minimum 6 sets per 30 days |
| Strength standards | none (standards exist for barbell and dumbbell lifts with published norms) |
How weyt.ai scores it
- Balance: every logged set counts toward the Shoulders group, which needs at least 6 sets per 30 days for full credit.
- Strength: counts as a lift. Your best working set each session feeds a best lift estimate (an estimated one-rep max) per lift, read over 12 weeks on the Strength screen.
- Routine: any session that includes it counts toward your weekly target, the 4-week consistency window and your streak.
Scoring is plain arithmetic, not AI: the same sets always give the same result. Read the method on the about page.
Also called
side lying external rotation, lying dumbbell external rotation, external rotation, dumbbell rotator cuff
Log it under any of these names and weyt.ai files it under the same exercise, so your history never splits across spellings.
Related shoulders exercises
- Cable External Rotation
- Band External Rotation
- Dumbbell Upright Row
- Dumbbell Shoulder Press
- Arnold Press
- Dumbbell Push Press
Everything else that counts as shoulders
Landmine Press · Barbell Upright Row · Barbell Overhead Press · Machine Shoulder Press · Push Press · Kettlebell Press · Band Overhead Press · Dumbbell Lateral Raise · Cable Lateral Raise · Machine Lateral Raise · Band Lateral Raise · Dumbbell Front Raise · Plate Front Raise · Cable Front Raise · Barbell Front Raise · Dumbbell Rear Delt Fly · Cable Rear Delt Fly · Reverse Pec Deck · Pike Push-Up · Handstand Push-Up · Battle Ropes · Cable Upright Row · Smith Machine Overhead Press · Z Press · Band Front Raise · Handstand Hold · Push Jerk · Clean and Press · Dumbbell Clean and Press · Kettlebell Clean and Press · Overhead Carry · Log Press