# Lying Prone W - Canonical: https://fitwill.app/exercise/8095/lying-prone-w/ - Media ID: 8095 - Primary muscle: Back - Body part: Upper Back - Equipment: Body Weight - Video: https://fitwill.app/videos/8095/lying-prone-w.mp4 ## Description The Lying Prone W is a bodyweight back exercise performed face down on the floor, with the arms bent and positioned out to the sides so the upper body forms a W shape. From there, you lift the arms and chest slightly off the ground by squeezing the shoulder blades together, then lower back down under control. It looks simple, but holding that position demands real strength and endurance from the muscles between the shoulder blades and the back of the shoulders. This movement targets the mid-upper back, especially the rhomboids and middle and lower trapezius, along with the posterior deltoids and the small rotator cuff muscles that stabilize the shoulder. Because you are lying prone, gravity pulls directly on the arms, which means the lift comes almost entirely from scapular retraction and thoracic extension rather than momentum. The erector spinae along the spine work isometrically to hold the chest up, and the glutes and hamstrings brace quietly in the background. The Lying Prone W is especially useful for people who spend long hours sitting at a desk, driving, or looking down at a phone. Those habits tend to push the head forward and round the upper back, and this exercise trains the exact opposite position: chest open, shoulders pulled back and down, neck in line with the spine. It is also a staple in shoulder health and post-rehab programming because it loads the rear shoulder and scapular muscles without heavy weights or joint compression. Setup matters more than it might seem. Lie face down with your legs straight behind you, forehead or nose hovering just above the floor, and place the arms out to the sides with elbows bent roughly 90 degrees, so the upper arms and forearms form the W. Keep the thumbs pointed up toward the ceiling. This arm position encourages external rotation of the shoulders, which is friendlier to the shoulder joint than internally rotated versions, and it makes it much harder to cheat by shrugging. To execute the lift well, think about pulling the elbows back and down toward your hips rather than just raising the hands. Your chest may lift an inch or two, and that is plenty. The end position should feel like a strong squeeze between the shoulder blades, with the neck long and the shoulders away from the ears. Hold briefly at the top, then lower the arms and chest back down slowly instead of dropping them. Common use cases include warm-ups before upper body pulling days, corrective work for rounded shoulders, higher-rep endurance sets for the mid-back, and as a progression stepping stone toward harder prone variations like the Y, T, or prone cobra. Because no equipment is needed, it fits easily into home routines, and a thin mat or padded surface makes the position more comfortable for the ribs and hips. The main safety points are modest but important: keep the lift small enough that your lower back does not arch aggressively, avoid craning the neck upward, and stop if you feel pinching in the shoulders. Quality repetitions with a two- to three-second hold beat rushed sets every time with this movement. ## Instructions 1. Lie face down on a mat or firm floor with your legs extended straight behind you, the tops of your feet resting on the ground. 2. Position your arms out to the sides at roughly shoulder height and bend the elbows to about 90 degrees, so the upper arms and forearms form a W shape with your thumbs pointing toward the ceiling. 3. Rest your forehead lightly toward the floor or hover it just above it, keeping your neck long and in line with your spine. 4. Gently brace your abdominals and squeeze your glutes slightly to anchor your hips and pelvis to the floor. 5. Exhale as you lift your arms and chest a few inches off the floor by pulling your elbows back and down, drawing your shoulder blades toward each other and toward your lower back. 6. At the top, pause for two to three seconds, keeping the shoulders down away from your ears and your thumbs rotated up. 7. Inhale as you slowly lower your arms and chest back to the floor over two to three seconds, maintaining the W arm position throughout. 8. Reset your brace and neck position between repetitions rather than letting the shoulders creep up or the lower back take over. 9. Complete your target repetitions with the same small, controlled range, then lower fully and shake out the shoulders before standing up. ## Tips & Tricks - If your chest barely lifts, that is fine — the Lying Prone W is about shoulder blade movement, not height. Chasing lift usually shifts the work into the lower back. - The most common mistake is shrugging. If your shoulders ride up toward your ears, consciously press them down toward your hips before starting each rep. - Keep your gaze on the floor. Craning the neck up strains the front of the neck and takes tension away from the upper back you are trying to train. - If your thumbs rotate forward or down mid-set, the shoulders are drifting into internal rotation. Reset the W with thumbs up before continuing. - Arching hard through the lower back at the top is a sign the range is too big. Lift the chest less and focus the squeeze between the shoulder blades. - A slow two-second lowering phase doubles the value of each rep. Dropping the arms back to the floor wastes most of the work. - If lying flat bothers your ribs or hips, place a thin pad or folded towel under the hip bones, but keep the torso level rather than propped up. - Start with short holds and more repetitions rather than long holds. Fatigue in the mid-back shows up quickly as a shrug, and a fatigued shrug pattern reinforces poor posture. - Pair the Lying Prone W with a chest stretch or doorway stretch on rest periods to balance the openness you are building in the upper body. ## Frequently Asked Questions ### What muscles does the Lying Prone W work? It primarily targets the rhomboids and middle and lower trapezius between the shoulder blades, with strong support from the posterior deltoids and rotator cuff. The erector spinae hold the chest up, and the glutes stabilize the hips. ### Why is the arm position shaped like a W? Bending the elbows to 90 degrees and keeping the thumbs up places the shoulders in external rotation, which trains the rear shoulder and rotator cuff in a joint-friendly position and makes shrugging harder to get away with. ### Is the Lying Prone W suitable for beginners? Yes. It uses only bodyweight and a small range of motion, so beginners can start with eight to twelve reps and short two-second holds. Many beginners actually need to scale the lift down rather than up. ### How high should I lift my chest during the Lying Prone W? An inch or two is enough. The goal is a strong squeeze between the shoulder blades with a neutral neck, not a big backbend. If your lower back is arching hard, you have gone too far. ### Why do my shoulders shrug when I do the Lying Prone W? Shrugging means the upper traps are taking over for fatigued mid-back muscles. Lower the chest slightly, consciously pull the shoulders down toward your hips, and reduce the hold time until the shrug disappears. ### Can I do the Lying Prone W if I have lower back discomfort? Many people find it tolerable because the lift is small, but you should keep the chest lift minimal, brace the abdominals, and stop if symptoms increase. Anyone with ongoing discomfort should get clearance from a qualified professional first. ### What can I substitute if lying on the floor is not comfortable? The same W pattern can be done standing or seated facing a wall, or bent over with light dumbbells. The floor version is the easiest to learn because gravity and the floor give clear feedback on arm position. ### How is the Lying Prone W different from the prone Y or T? The W uses bent elbows, which shortens the lever and biases the middle trapezius and rhomboids, while the Y and T straighten the arms and challenge the lower trapezius and shoulder stabilizers in different ranges. They complement each other well. ### How many reps and sets of the Lying Prone W should I do? Two to three sets of ten to fifteen reps with two- to three-second top holds is a solid starting point. Since it is an endurance-focused movement, prioritize crisp scapular squeezing over adding load or long holds. ### Should I add weight to the Lying Prone W? Not at first. Only consider light wrist weights or small dumbbells once you can complete all sets with no shrugging and a controlled lowering phase on every rep.