Exercise guide
Lying Back Extension
- Beginner
- Compound
- Rep-based
- Back
- Upper legs
This exercise targets the posterior chain, specifically the glutes and hamstrings, through a controlled hip hinge movement that builds lower back stability and functional strength.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Adjust the thigh pads so the top edge sits just below your hip bones to allow for full hip flexion without restriction.
- Place your feet firmly against the footplates with your ankles secured under the rollers and toes pointed slightly outward.
- Cross your arms over your chest or place your hands lightly behind your ears, keeping your spine in a neutral line.
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, maintaining a flat back.
- Exhale and drive your hips into the pad, using your glutes and hamstrings to lift your torso back to the starting position.
- Maintain a controlled 2-second descent and a 1-second ascent, stopping when your body forms a straight line from head to heels.
Form checklist
- Keep your chin tucked toward your chest to maintain a neutral cervical spine.
- Avoid overextending or arching your lower back past the neutral 'straight line' position at the top.
- Ensure the movement occurs entirely at the hip joint rather than rounding or arching the lumbar spine.
- Keep your core braced throughout the entire range of motion to protect your spine.
Pro tips
- To maximize glute engagement, focus on 'pushing' the pad away with your hips rather than pulling your torso up with your back muscles.
- Squeeze your glutes as hard as possible at the top of the movement to ensure they are the primary movers.
Make it harder
- Hold a weight plate or dumbbell against your chest to increase resistance.
- Perform the movement with a 3-second isometric hold at the top of each repetition to increase time under tension.
Frequently asked
- What muscles does the lying back extension work?
- The lying back extension primarily targets the glutes and hamstrings, and also works the erector spinae and obliques as secondary muscles.
- What equipment do you need for the lying back extension?
- The lying back extension requires no equipment — just your body weight.
- Is the lying back extension good for beginners?
- Yes. The lying back extension is a beginner-friendly movement and a strong foundation to build on.
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