Exercise guide
45 Degrees Back Extension Scapular Adduction
- Intermediate
- Compound
- Rep-based
- Back
- Waist
This compound movement integrates a posterior chain hinge with active upper back retraction, effectively strengthening the glutes and hamstrings while improving postural stability through the trapezius and rhomboids.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Adjust the thigh pads so the top edge sits just below your hip crease to allow for a full range of motion at the pelvis.
- Place your feet firmly against the footplate with your ankles secured under the rollers and legs fully extended.
- Start with your torso in a straight line with your legs and your arms hanging vertically toward the floor.
How to do it
- Inhale and slowly hinge at the hips to lower your torso toward the floor until you feel a deep stretch in your hamstrings.
- Exhale and drive your hips into the pad to lift your torso back to the starting position using your glutes and hamstrings.
- At the top of the movement, pull your shoulder blades together forcefully (adduction) while slightly rotating your thumbs outward.
- Hold the peak contraction in your upper back for one second before initiating the next descent.
Form checklist
- Maintain a neutral spine throughout the movement; do not round the back or hyperextend at the top.
- Ensure the hinge occurs at the hips rather than the lumbar spine.
- Keep your chin tucked and gaze slightly downward to maintain a neutral neck position.
- Focus on pulling the shoulder blades toward the spine rather than just moving the arms.
Pro tips
- To maximize trap engagement, imagine trying to pinch a pencil between your shoulder blades at the top of every rep.
- Initiate the upward phase by squeezing your glutes as hard as possible to ensure they are the primary movers before the lower back engages.
Make it harder
- Hold a light weight plate or dumbbells to increase resistance during both the hinge and the scapular squeeze.
- Incorporate a 3-5 second isometric hold at the top of the movement to increase time under tension for the postural muscles.
Frequently asked
- What muscles does the 45 degrees back extension scapular adduction work?
- The 45 degrees back extension scapular adduction primarily targets the glutes, hamstrings, and trapezius, and also works the erector spinae and obliques as secondary muscles.
- What equipment do you need for the 45 degrees back extension scapular adduction?
- The 45 degrees back extension scapular adduction requires no equipment — just your body weight.
- Is the 45 degrees back extension scapular adduction good for beginners?
- The 45 degrees back extension scapular adduction is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.
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