How to Do Prone Y Raises With Lower-Trap Form and Control

The prone Y raise looks small because it is small. That is the point. You are training the lower part of the trapezius to help pull the shoulder blades down, rotate them upward, and keep the neck from taking over when your arms move overhead.

Muscles Worked

Primary: Prone Y raises work five muscles together. The lower trapezius helps draw the shoulder blades down and into upward rotation as the arms lift, and it controls the return as they lower so the shoulders do not dump forward.

The middle trapezius pulls the shoulder blades together. The rear (posterior) deltoids, at the backs of the shoulders, help lift the arms into the diagonal Y. The rhomboids, between the shoulder blades, work with the middle trapezius to keep the shoulder blades drawn back. The latissimus dorsi (lats), along the sides of the upper back, help hold the shoulders down, away from the ears, so the neck stays out of the lift.

Body position: The rest of your body stays still, with your chest low, your lower back quiet and your neck long as you face the floor. Good reps feel controlled around the shoulder blades, not arched through the low back.

Mechanism: The prone position removes most lower-body momentum and makes the shoulder blades do the work. Because the arms are long levers, even bodyweight creates enough demand for most beginners. In an EMG study of 30 healthy adults, raising the arm overhead in line with the lower trapezius while lying face down, the Y position, done with a dumbbell and the thumb turned up, produced the highest lower trapezius activity of the 10 exercises tested and was among the top two for the middle trapezius (Ekstrom et al., 2003).

Step-by-Step: How to Do Prone Y Raises

1. Lie face down. Set up on the floor or a mat with your legs long and your forehead close to the ground. Reach both arms overhead and out at a diagonal so your body forms a Y, with your palms facing down toward the floor. Tip: Keep your elbows straight and your face toward the floor so your neck stays long.
2. Brace lightly. Tighten your abs and glutes just enough to keep the ribs from flaring. Pull your shoulders away from your ears before you lift.
3. Lift both arms. Raise the arms a few inches while keeping the elbows straight. Think about sliding the shoulder blades down your back as the hands leave the floor.
4. Hold without shrugging. Keep the arms up with your elbows straight or nearly straight and breathe steadily for as long as you can keep the position. If the upper traps bunch near your ears, lower the arms and reset with a smaller range.
5. Lower when your form breaks. When the elbows start to bend, the shoulders creep up, the chest lifts, or the arms sag out of the Y, take two to three seconds to return the hands to the floor. Touch down lightly, keep the Y shape, and start the next hold only while the neck stays relaxed.

Common Mistakes and How to Fix Them

Turning the Y Into an I or T

What it looks like: Your arms drift too narrow overhead or too wide toward the sides.

Why it matters: Arm angle changes the shoulder-blade demand. A clean diagonal keeps the exercise in the Y slot instead of turning it into a different YTW drill.

The fix: Before each hold, make a clear letter Y with your body and arms. If fatigue pulls your arms out of position, lower them and reset the angle before the next hold.

Shrugging at the Top

What it looks like: The shoulders climb toward the ears as the hands leave the floor.

Why it matters: The upper traps take over and the lower-trap signal gets weaker.

The fix: Think "shoulders away from ears" before the lift starts. Use a smaller range until the neck can stay quiet.

Bending the Elbows

What it looks like: The arms start long, then bend more and more as you lift or as the hold goes on.

Why it matters: A clearly bent elbow shortens the lever and turns the movement into a partial row. A slight, steady bend is fine, and bending the elbows on purpose is the easier version.

The fix: Reach long through the fingertips and stop the set when you can no longer keep the elbows straight or nearly straight.

Lifting the Chest

What it looks like: Your sternum peels off the floor and the low back arches hard.

Why it matters: You shift the movement away from scapular control and toward spinal extension.

The fix: Lightly squeeze your glutes, keep the ribs heavy, and make the arm lift smaller.

Letting the Arms Sag Mid-Hold

What it looks like: The hands drift back down toward the floor while you are still holding.

Why it matters: Once the arms sag, the shoulder blades stop doing the work and the hold no longer trains the position.

The fix: End the hold as soon as the arms start to drop. Lower them slowly, rest, and start the next hold fresh.

Prone Y Raise Variations: Regressions and Progressions

Easier Variations

• Short-range prone Y raise. Lift only one or two inches while you learn to keep the neck relaxed.
• Shorter holds. Lift into the Y and lower as soon as the position starts to slip, then rest and repeat. Short, clean holds build endurance before you chase longer ones.
• Incline bench Y raise. Lie chest-down on a low incline bench if the floor position feels cramped or you need more room for the arms.

Harder Variations

• Longer holds. Stay in the Y longer, but only while the elbows stay straight and the neck stays relaxed.
• Light dumbbell prone Y raise. Use one- to three-pound dumbbells only after bodyweight holds stay clean.
• YTW circuit. Flow from I raises to Y raises to T raises to W raises for a complete scapular-control sequence.

Rep-based alternative: instead of one long hold, you can lift into the Y, pause for one to two seconds, and lower slowly for a set of reps. The programming section below lists rep ranges for this option.

When to Avoid or Modify Prone Y Raises

Prone Y raises are safe for many healthy adults, but shoulder isolation work should feel controlled and pain-free. Always consult your physician or a qualified physical therapist before starting or returning to exercise, especially if symptoms are new, sharp, or linked to an injury.

• Shoulder impingement or pinching overhead. Stop if your shoulder hurts or pinches. Use a smaller lift, try an isometric hold at a lower arm height, or swap to W raises until overhead elevation feels clean.
• Recent shoulder, neck, or upper-back surgery. Wait for surgeon or physical therapist clearance. Rehab usually starts with pain-free isometrics before full-range isolation work.
• Active rotator cuff tendinopathy or bursitis. Keep the range small and the load bodyweight-only. Stop if your shoulder hurts during the set or later that day.
• Neck pain or tension with prone work. Stop if your neck hurts. For neck tension, support the forehead on a folded towel and reduce the hold time. If neck tension still dominates, choose shoulder rolls or another low-load prep drill.
• Numbness, tingling, or symptoms down the arm. Skip the exercise and get assessed. Radiating symptoms are not a normal training sensation.

Related Exercises

• Same YTW series: I raises, T raises, and W raises train neighboring shoulder-blade positions.
• Shoulder and scapular health: Pull-aparts and scissor raises add light band or arm-control options.
• Compound pulling support: Bent-over rows train the upper back with more total load.
• Pressing carryover: Shoulder presses use the upward-rotation control that Y raises help build.
• Neighboring isolation work: Lateral raises train the deltoids through a different shoulder angle.

How to Program Prone Y Raises

Ratamess et al., 2009, the ACSM Position Stand on resistance-training progression, supports matching volume, load, rest, and frequency to training level. For prone Y raises, keep the load low and progress only when the shoulder position stays clean.

Rep-based alternative: if you prefer lift-and-lower reps to holds, beginners can do 2-3 sets of 10-15 bodyweight reps, intermediates 3-4 sets of 8-15 reps with a one- to two-second pause at the top, and advanced trainees 3-4 sets of 6-15 reps with slow lowering or very light load.

Place prone Y raises early as shoulder prep before pressing, rows, pull-ups, or overhead work. They can also sit late in a session as low-load accessory work if the shoulders are not already irritated.

Use a form floor over time targets: end the hold when the neck takes over, the elbows bend, the chest lifts, or the Y angle drifts.