Shoulders
The main area this variation is designed to train.
Exercise guide
External Rotation
Learn how to do the External Rotation exercise, which muscles it works, the equipment you need, and common mistakes to avoid.
Dumbbell
Use this to decide whether the movement fits your current setup.
Beginner
A quick checkpoint for how simple or technical the movement usually feels.
Shoulders
Secondary support can come from other nearby stabilizers depending on how you perform the movement.
Strength
Movement pattern: general. This is more of an isolation-focused exercise.
Learning and repeating well
Use this page to understand the setup first, then track the movement consistently in Logbook once it fits your program.
Instructions
How to do External Rotation
Keep the setup simple, use a controlled pace, and repeat the same movement pattern each rep.
- 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.
Benefits
- Builds strength and control through the shoulders region.
- Makes it easier to focus on one area when you want extra practice or volume.
- Gives you a repeatable way to track progress inside Logbook over time.
Common mistakes
- Using more weight or speed than you can control cleanly.
- Cutting the range of motion short and rushing through the reps.
- Changing your body position between reps instead of keeping the movement repeatable.
Related workouts
Workout templates that use this exercise.
If you want to see this movement inside a more complete training session, start here.
3-Day Full Body Split
A three-day split that spreads total weekly work across three full-body sessions.
View workout4-Day Upper Lower Split
A simple four-day split that gives each half of the body two quality sessions each week.
View workout5-Day Bodybuilding Split
A traditional five-day bodybuilding split for lifters who enjoy focusing on one or two regions per session.
View workoutBeginner Dumbbell Workout
A full-body dumbbell session that works well in a home gym or a crowded commercial gym.
View workoutRelated exercises
More exercises in the same lane.
Use these when you want a similar movement pattern, a different setup, or more exercise options for the same target area.
Alternating Deltoid Raise
Alternating Deltoid Raise is a beginner strength that mainly trains your shoulders using dumbbell.
View exerciseBent Over Dumbbell Rear Delt Raise With Head On Bench
Bent Over Dumbbell Rear Delt Raise With Head On Bench is a beginner strength that mainly trains your shoulders using dumbbell.
View exerciseDumbbell Incline Shoulder Raise
Dumbbell Incline Shoulder Raise is a beginner strength that mainly trains your shoulders using dumbbell.
View exerciseDumbbell Raise
Dumbbell Raise is a beginner strength that mainly trains your shoulders using dumbbell.
View exerciseFAQ
Common questions about External Rotation.
Use these answers as a practical starting point, then adjust based on your setup, comfort, and goals.
What muscles does External Rotation work?
External Rotation mainly works the shoulders. It can also involve supporting muscles around the same region depending on your setup and range of motion.
Is External Rotation beginner-friendly?
Yes. This exercise is listed as beginner-friendly, which usually means the setup and learning curve are more manageable.
What equipment do I need for External Rotation?
You will usually need Dumbbell for this variation.
How should I progress External Rotation?
Start by making the reps smoother and more repeatable. Once the whole set looks controlled, add a small amount of load or one extra rep at a time.
Track this exercise for free in Logbook.
Once the movement is in your plan, use Logbook to record sets, reps, load, and progress without guessing what happened last week.
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