# 45 Degrees Back Extension Scapular Adduction - Canonical: https://fitwill.app/exercise/8895/45-degrees-back-extension-scapular-adduction/ - Media ID: 8895 - Primary muscle: Back - Body part: Upper Back - Equipment: Roman Chair - Video: https://fitwill.app/videos/8895/45-degrees-back-extension-scapular-adduction.mp4 ## Description The 45 Degrees Back Extension Scapular Adduction is a two-phase body weight exercise performed on a 45-degree hyperextension bench. Instead of stopping the rep at a neutral torso position like a standard back extension, you extend up to horizontal and then finish the rep by pulling your shoulder blades together, keeping your arms bent and close to your body. This turns a familiar lower back drill into a combined posterior chain and upper back movement. The exercise trains the rhomboids and mid-traps through scapular adduction, while the erector spinae, glutes, and hamstrings work isometrically to hold your torso in line with your legs. The rear delts assist as your elbows stay tucked and your arms move slightly behind your torso. Because your body weight is the only load, the demand is easy to scale with tempo and positioning. Setup matters a great deal here. Your feet should be anchored under the foot platform with the ankle pads snug behind your calves, and the top pad should sit just below your hip crease so your pelvis can hinge freely without being pinned. If the pad sits too high, you lose hip extension and overload the lower back; too low, and you cannot reach a full hang at the bottom. Hands placed near your chest with elbows bent keeps the arm contribution minimal and forces the shoulder blades to do the work. To execute it well, lower your torso into a controlled stretch at the bottom, then drive the movement from your hips and spine up to a straight line from head to heels. At the top, squeeze your shoulder blades back and down as if holding a coin between them, pause briefly, and lower under control. Avoid jerking the torso upward or shrugging toward your ears at the finish. This variation suits lifters who want more mid-back volume without extra equipment, desk workers working on posture, and anyone who already does back extensions and wants to make the top of each rep more productive. It also works well as a superset with rows or pull-ups when the pulling muscles are already fatigued but the scapular retractors need targeted work. For safety, keep the range moderate at first and let the torso rise only to horizontal rather than hyperextending past your natural alignment. If you feel the work shifting into your neck or shoulders shrugging upward, reduce the pause at the top and refocus on the shoulder blade squeeze before adding volume. ## Instructions 1. Set the ankle pads of the 45-degree hyperextension bench so they rest just behind your calves, and position the hip pad just below your hip crease. 2. Place your feet firmly on the foot platform with your legs straight, and let your torso hang forward over the pad so your upper body points toward the floor. 3. Cross your arms over your chest or hold your hands near your sternum with elbows bent and tucked in, keeping your shoulders relaxed away from your ears. 4. Brace your abdominal muscles and lightly squeeze your glutes so your pelvis is stable before you start the rep. 5. Hinge up from the bottom position, extending through your hips and spine until your head, torso, and legs form one straight line. 6. At the top, pull your shoulder blades straight back toward your spine and slightly down, squeezing them together for a brief pause with your elbows staying close to your body. 7. Lower your torso slowly toward the floor, controlling the descent instead of dropping into the stretch. 8. Exhale as you extend upward and inhale as you lower back down, keeping a steady breathing rhythm. 9. Complete your reps, then step off the bench one leg at a time, using the side handles for support if you need them. ## Tips & Tricks - The most common mistake is hyperextending past a straight line at the top to chase extra range, which shifts stress onto the lumbar spine; stop when your torso is level with your legs. - If your shoulders creep toward your ears during the squeeze, you are using your upper traps instead of your rhomboids — think of pulling the blades down and together, not up. - Do not let your arms swing open at the top; keeping the elbows bent and tucked forces the scapular adduction to come from the shoulder blades rather than momentum. - If you cannot feel your mid-back working, slow the top phase to a two-second squeeze and let the lower back phase stay quick but controlled. - Check your hip pad height before adding reps: a pad that sits on your abdomen blocks hip extension and makes the top position feel cramped. - Keep your neck in line with your spine — looking up at the ceiling during the extension strains the neck and pulls you out of alignment. - If your hamstrings cramp at the bottom, shift your hips slightly higher on the pad so less of your thigh hangs free. - When the body weight version becomes easy, hold a small plate or dumbbell against your chest with both hands to add load without changing the movement pattern. ## Frequently Asked Questions ### Which muscles does the 45 Degrees Back Extension Scapular Adduction work? The scapular adduction phase targets the rhomboids and mid-traps, while the extension phase works the erector spinae along with the glutes and hamstrings. The rear delts assist during the shoulder blade squeeze. ### How is this different from a standard back extension on a 45-degree bench? A standard back extension ends once your torso reaches a straight line with your legs. In this version you add a deliberate shoulder blade squeeze at the top, making the mid-back the finishing focus of every rep. ### Where exactly should my hands be during the 45 Degrees Back Extension Scapular Adduction? Hold your hands near your chest with elbows bent and tucked close to your body, or cross your arms over your sternum. This keeps arm movement minimal so the shoulder blades, not the arms, drive the top of the rep. ### Is the 45 Degrees Back Extension Scapular Adduction suitable for beginners? Yes, as long as you start with a modest range and master the body weight version first. Beginners often benefit from doing a few standard back extensions before adding the scapular squeeze to learn the hip hinge. ### How far should I extend at the top of the movement? Extend only until your head, torso, and legs form a straight line. Bending backward past that point does not improve scapular adduction and places unnecessary stress on the lower back. ### Can I do the 45 Degrees Back Extension Scapular Adduction if my lower back gets sore easily? Keep the extension phase smooth and stop at a neutral torso position, putting most of your effort into the shoulder blade squeeze. If discomfort persists, choose seated rows or a chest-supported row instead and consult a professional if needed. ### What can I use if I do not have a 45-degree hyperextension bench? A Roman chair, glute-ham bench, or a bench with your hips anchored and feet held down by a partner can replicate the setup. The key is having your pelvis fixed and your torso free to hinge. ### Why do my hamstrings cramp during this exercise? Your hamstrings work hard to hold your legs straight and stable against gravity. Stretch them beforehand, keep the bottom position brief, and check that the hip pad is not positioned so low that more of your thigh hangs off the bench. ### How many reps of the 45 Degrees Back Extension Scapular Adduction should I do? Two to four sets of 10 to 15 controlled reps works well for most lifters, with a one-second pause at the top. Because the load is your body weight, quality of the squeeze matters more than chasing high rep numbers.