How heavy should the dumbbells be for this exercise?

This is a high-repetition postural exercise, so you should use very light weights, typically between 2 to 5 pounds. Proper form and muscle activation are more important than the load for targeting the small stabilizer muscles.

Can I perform YTWLs without a weight bench?

Yes, you can perform these while standing in a hinged, bent-over position or lying prone on the floor. If standing, ensure your core is engaged to protect your lower back while you are leaned forward.

Should my thumbs always point up?

For most of the movements, particularly the Y and the T, pointing your thumbs up helps create more space in the shoulder joint and better engages the lower traps. In the W and L phases, focus on the rotation of the humerus.

YTWL Exercise Guide: Shoulder Stability and Posture

Master the YTWL exercise to strengthen your rotator cuff, improve posture, and enhance shoulder mobility with our step-by-step coaching guide.

How to Perform

Hinge at the hips or lie face down on an incline bench while holding light dumbbells with a neutral grip.
Form the Y shape by raising your arms diagonally to a 45-degree angle with your thumbs pointing toward the ceiling.
Transition to the T shape by extending your arms directly out to the sides while squeezing your shoulder blades together.
Create the W shape by pulling your elbows down toward your ribs and retracting your scaps until your arms form a double-V.
Finish with the L shape by keeping your upper arms parallel to the floor and rotating your forearms upward until they are vertical.
Hold each position for one second before returning to the starting point to begin the next letter in the cycle.

Common Mistakes

Using heavy weights that force the lower back to arch or compensate
Shrugging the shoulders toward the ears instead of keeping them depressed
Rushing through the transitions without achieving full range of motion
Leading the movement with the hands rather than the shoulder blades

Muscles Worked

Primary movers

Shoulders

Stabilizers

Lower Trapezius
Rhomboids
Rear Deltoids
Infraspinatus

Related Guides

Arm Raises (T/Y/I) — Shoulders
Arnold Press — Shoulders
Australian pull-ups — Shoulders

Shoulders · Shoulders