Exercise guide
Spine Lumbar - Extension
- Beginner
- Isolation
- Timed hold
- Back
- Waist
This isolation exercise strengthens the erector spinae and trapezius muscles, improving spinal stability and posture by targeting the posterior chain.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Lie face down on a flat, comfortable surface with your legs extended straight behind you.
- Place your hands lightly behind your head or extend them forward for more challenge.
- Keep your toes pointed and your forehead resting on the floor to start.
How to do it
- Exhale as you simultaneously lift your chest, arms, and legs a few inches off the floor by contracting your lower back and glutes.
- Hold the peak contraction for one second, focusing on squeezing your shoulder blades together to engage the trapezius.
- Inhale as you slowly lower your limbs back to the starting position in a controlled manner.
- Maintain a steady tempo, avoiding any jerky or momentum-based movements.
Form checklist
- Keep your gaze toward the floor to maintain a neutral cervical spine and avoid neck strain.
- Squeeze your glutes throughout the movement to stabilize the pelvis and protect the lower back.
- Avoid overextending or arching excessively; lift only as high as is comfortable for your range of motion.
- Keep your movements slow and deliberate to maximize time under tension.
Pro tips
- Imagine someone is pulling your hands and feet in opposite directions to create length in the spine before you lift upward.
- Focus on the mind-muscle connection by feeling the muscles along your spine 'zip up' from the tailbone to the neck as you lift.
Make it harder
- Increase the time under tension by holding the top position for 3-5 seconds per repetition.
- Perform 'Superman' pulses by staying in the lifted position and moving through a small, 2-inch range of motion at the top.
Frequently asked
- What muscles does the spine lumbar - extension work?
- The spine lumbar - extension primarily targets the erector spinae and trapezius, and also works the glutes and obliques as secondary muscles.
- What equipment do you need for the spine lumbar - extension?
- The spine lumbar - extension requires no equipment — just your body weight.
- Is the spine lumbar - extension good for beginners?
- Yes. The spine lumbar - extension is a beginner-friendly movement and a strong foundation to build on.
Related exercises
- Around The World Superman HoldIntermediate · erector spinae, glutes, hamstrings, lats, and trapezius
- Back LeverAdvanced · erector spinae, glutes, hamstrings, lats, pectorals, and trapezius
- Barbell Hang Clean High PullAdvanced · erector spinae, glutes, hamstrings, lats, quadriceps, and trapezius
- Barbell High PullIntermediate · deltoids, erector spinae, glutes, hamstrings, and trapezius