Dumbbell Side-Lying Internal Rotation
Strengthen your rotator cuff with Dumbbell Side-Lying Internal Rotations! Improve shoulder stability and prevent injuries.
The Dumbbell Side-Lying Internal Rotation mainly works the shoulders and back, with help from the triceps and core. No equipment needed: it uses just your bodyweight.
Optional Equipment



Dumbbell Side-Lying Internal Rotation Muscles Worked
Primary
Shoulder Rotator (subscapularis); Lats (latissimus dorsi)
Secondary
Triceps (triceps brachii); Obliques
Dumbbell Side-Lying Internal Rotation Variations and Alternatives
How to do the Dumbbell Side-Lying Internal Rotation
Dumbbell Side Lying Internal Rotation
Flat bench or workout mat
1. Starting Position:
Lie down on your side on a flat bench or mat. Your body should be aligned, with your hips stacked on top of each other.
Rest your head on your lower arm for support. Your other arm will hold the dumbbell.
Arm Positioning:
With your top arm (the one not touching the ground), grab the dumbbell and bend your elbow to a 90-degree angle.
Keep the dumbbell close to your body, with your forearm perpendicular to the ground.
Initial Setup:
Your elbow should be tucked into your side, and your forearm should be resting in front of your stomach.
Your feet can be stacked on top of each other or staggered for balance.
Movement:
Slowly rotate your upper arm down towards the ground, moving the dumbbell in a controlled manner.
Keep your elbow close to your body throughout the movement.
End Position:
Lower the dumbbell until your forearm is parallel to the ground or as far as your range of motion allows without compromising your form.
Hold the position for a brief second to feel the contraction in your shoulder.
Return to Starting Position:
Gradually lift the dumbbell back to the starting position, maintaining control and form.
Repetitions:
Aim for 10-15 repetitions on one side before switching to the other side.
Perform 2-3 sets based on your fitness level.
Tips:
Focus on a slow and controlled movement to engage the muscles effectively.
Keep your core engaged to maintain stability throughout the exercise.
Adjust the weight of the dumbbell if you feel straining or if the exercise is too easy.
Dumbbell Side-Lying Internal Rotation FAQs
What muscles does the Dumbbell Side-Lying Internal Rotation work?
The Dumbbell Side-Lying Internal Rotation mainly works the shoulders and back, with help from the triceps and core. The main muscles are the subscapularis and latissimus dorsi.
What equipment do you need for the Dumbbell Side-Lying Internal Rotation?
None. The Dumbbell Side-Lying Internal Rotation is a bodyweight exercise, so you can do it anywhere.
What workout day should the Dumbbell Side-Lying Internal Rotation go on?
It belongs on push day in a push/pull/legs routine.
What are some Dumbbell Side-Lying Internal Rotation variations and alternatives?
Similar exercises include the Bodyweight Lying Shoulder External Rotation, Dumbbell Lying Shoulder External Rotation, Dumbbell Shoulder Internal 90-Rotation Abduction and Dumbbell Side-Lying External Rotation.
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