How many reps of the prone L raise should a beginner do?

Two to three sets of ten to fifteen slow reps per side, using body weight alone, is a solid starting dose. Progress by adding a light resistance band looped around the wrists only after every rep stays smooth and the shoulder blade stays quiet — more load matters far less here than more control.

How do you make the prone L raise easier or harder?

To make it easier, do it lying on your side with the working arm on top, since gravity does less work against you at that angle. To make it harder once the full range is smooth and controlled, add a very light resistance band around the wrists — heavier load teaches the bigger shoulder muscles to take over instead of the small rotators this move targets.

What is the prone L raise good for, and when is it not the right choice?

It builds rotator cuff endurance that protects the shoulder during pressing, throwing, and overhead work, and suits anyone rebuilding after a cranky shoulder. It is a poor choice during an acute shoulder injury with pain at rest, or as a way to build pressing strength, since the loads here are intentionally too light for that.

Beginner

Prone L Raise

The L raise directly loads the infraspinatus and teres minor, the small external rotators that keep the humeral head centered during overhead work. With the upper arm out to the side at shoulder height and the elbow bent to 90 degrees, you rotate the forearm up and back. It is one of the safest ways to build cuff endurance before pressing or throwing.

Equipment: Bench
Body part: Shoulder
Type: Strength
Browse by muscle: Infraspinatus
Browse by movement: Shoulder Rotation

How to do it

1
Lie face down on a flat bench with your upper arm out to the side at shoulder height, level with the bench, and the elbow bent to 90 degrees.
2
Let the forearm hang straight down toward the floor to start.
3
Keeping the elbow fixed, rotate the forearm upward until the back of the hand faces the ceiling.
4
Pause briefly at the top where the forearm is roughly parallel with the floor.
5
Lower the forearm under control back to the hanging start.
6
Move slowly and keep the shoulder blade set down and back.

Tips

The elbow stays glued in place; only the forearm rotates.
Go light or bodyweight only; the cuff responds to control, not load.
If the shoulder shrugs up, reset the blade before continuing.

Variations

Common mistakes

The rotation stops well short of parallel to the floor, training only the bottom third of the range where the muscle is already strong.
Momentum from a quick flick up replaces the slow rotation, so the small external rotators barely have to work to get the hand to the top.
The head lifts to look at the rotating hand, which twists the neck and undoes the flat, stable base the movement depends on.
Rushing straight into a heavier version, like adding a light band, before the bodyweight rotation is smooth skips the control this exercise is meant to build.
The torso rocks or the far shoulder lifts off the bench to help swing the arm up, borrowing from the back instead of the rotator cuff.

Frequently asked

How many reps of the prone L raise should a beginner do?: Two to three sets of ten to fifteen slow reps per side, using body weight alone, is a solid starting dose. Progress by adding a light resistance band looped around the wrists only after every rep stays smooth and the shoulder blade stays quiet — more load matters far less here than more control.
How do you make the prone L raise easier or harder?: To make it easier, do it lying on your side with the working arm on top, since gravity does less work against you at that angle. To make it harder once the full range is smooth and controlled, add a very light resistance band around the wrists — heavier load teaches the bigger shoulder muscles to take over instead of the small rotators this move targets.
What is the prone L raise good for, and when is it not the right choice?: It builds rotator cuff endurance that protects the shoulder during pressing, throwing, and overhead work, and suits anyone rebuilding after a cranky shoulder. It is a poor choice during an acute shoulder injury with pain at rest, or as a way to build pressing strength, since the loads here are intentionally too light for that.

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