maratoolExternal Rotation
How to do the external rotation
- Lie sideways on a flat bench with one arm holding a dumbbell and the other hand on top of the bench folded so that you can rest your head on it.
- Bend the elbows of the arm holding the dumbbell so that it creates a 90-degree angle between the upper arm and the forearm. Tip: Keep the arm parallel to your torso.
- Now bend the elbow while keeping the upper arm stationary. In this manner, the forearm will be parallel to the floor and perpendicular to your torso (Tip: So the forearm will be directly in front of you). The upper arm will be stationary by your torso and should be parallel to the floor (aligned with your torso at all times). This will be your starting position.
- As you breathe out, externally rotate your forearm so that the dumbbell is lifted up in a semicircle motion as you maintain the 90 degree angle bend between the upper arms and the forearm. You will continue this external rotation until the forearm is perpendicular to the floor and the torso pointing towards the ceiling. At this point you will hold the contraction for a second.
- As you breathe in, slowly go back to the starting position.
- Repeat for the recommended amount of repetitions and then switch to the other arm.
Muscles worked
The prime movers are the deltoids, which raise and rotate the upper arm at the shoulder joint.
Every exercise for:Shoulders
How this movement works
One joint changes angle and the resistance travels toward you along a single arc. Nothing is positioned to help, so tension stays where you aimed it and the usable load drops sharply against a multi-joint pull for the same muscle. Protect the range of motion; buying weight by shortening the arc defeats the point.
It is filed under strength: produce force against resistance for a countable number of repetitions, and progress the resistance over time.
What you need
Dumbbells let each side work on its own, surfacing a strength difference between limbs that a barbell would quietly cover for, and leaving the wrist free to rotate through the movement.
Every exercise using:Dumbbell
These train the shoulders too, using equipment this one does not:
- External Rotation with Bandband
- External Rotation with Cablecable
- Handstand Push-Upsbody only
- Jerk Balancebarbell
- Kettlebell Arnold Presskettlebell
Difficulty
Listed at beginner level: the pattern is simple enough to pick up without coaching, and a position that goes wrong mid-set is obvious enough to correct on the next repetition.
Of the 141 shoulders exercises in this database, 74 are listed at beginner level.
Photos: free-exercise-db — public domain (Unlicense) Full attribution →
ⓘ Informational only — not a substitute for professional fitness or medical advice.