Reviewed June 2026
Back Extension
Save
Primary
Back
Secondary
Glutes, Hamstrings
Equipment
Machine
Difficulty
Beginner
Type
Hinge
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Written byMySetPlan Training Team
NASM-CPT, CSCS certified trainers. Every guide is built from peer-reviewed research and real coaching experience.
Back extensions strengthen your erector spinae—the muscles that run along your spine. Position yourself on the apparatus, lower your torso, then raise back to horizontal. Simple movement, direct lower back work. Your glutes and hamstrings assist, but your spinal erectors do the heavy lifting.
When to use it
Use for lower back strength for optimal results.
Who it's for
All fitness levels looking to build strength and muscle definition.
Coaching Note
Stop at horizontal—do not hyperextend into an arched position. Hyperextension compresses your spine under load and offers no additional benefit. Raise to neutral, squeeze, lower with control.
Muscles worked: Back Extension
Also targets: Glutes, Hamstrings
See where Back Extension fits in your weekly plan
We slot it into the right day with sets, reps, and progression you can follow.
Back Extension form guide
- 1
Position yourself on the back extension machine.
- 2
Secure your ankles under the pads.
- 3
Cross arms over chest or behind head.
- 4
Lower your upper body toward the floor.
- 5
Raise back up to horizontal.
- 6
Don't hyperextend for optimal results.
What are the best tips for the Back Extension?
Great for lower back strength.
Don't go past horizontal.
Can hold weight for progression.
Focus on control for optimal results.
When to Use the Back Extension
Use back extensions at the end of leg or back days to directly strengthen your lower back. Works well as a warm-up before deadlifts with light resistance. Hold a plate against your chest to add progressive overload once bodyweight becomes easy.
What are common Back Extension mistakes to avoid?
Hyperextending at top.
Hyperextending at the top of the Back Extension transfers load from your Erector spinae onto your joints. Stop just short of full lockout to keep constant tension on the muscle.
Going too fast which reduces muscle tension and control.
Rushing through the Back Extension reduces the time your Erector spinae spends under tension — which is one of the main drivers of growth. Aim for a controlled 2-second lowering phase on every rep.
Using momentum instead of controlled muscle contraction.
Bouncing or using momentum during the Back Extension takes work away from your Erector spinae and puts your connective tissue at risk. Control the weight through the full range — if you can't, lower the load.
Is the Back Extension right for you?
All fitness levels looking to build strength and muscle definition.
How to Program the Back Extension
Strength8-10 reps
Lower reps with heavier weight builds raw strength. Your muscles and nervous system adapt to handle more load over time. This range is best for strength-focused goals.
Muscle Growth12-15 reps
This rep range keeps your muscles under tension long enough to trigger growth. Most people see the best muscle-building results in this zone. It balances strength and muscle size.
Endurance15-20 reps
Higher reps with lighter weight builds muscular endurance and improves conditioning. This range is good for joint health and building work capacity.
General guideline: 3 sets of 12-15 reps. Rest 60s.
Where Back Extension fits in your workout
MySetPlan places Back Extension inside a complete workout — with the right sets, reps, rest periods, and a progression you can follow week to week.
Sample workout
- Lat Pulldown4 × 8
- Row Variation3 × 10
- Back Extension3 × 12
- Face Pull3 × 15
Use this exercise in Gym Mode
MySetPlan guides you set by set, times your rest, lets you swap if equipment is busy, and tells you what to do next.
Try Gym Mode FreeWhat are good alternatives to the Back Extension?
Other Variations
- 45-Degree Back Extension
- Weighted Back Extension
- GHD Back Extension
This Exercise Is in Your Plan
MySetPlan picks the right exercises for your goals — like the Back Extension — and builds them into a monthly program. Every set, every rep, planned out.
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Safety Notes
- Don't hyperextend.
- Control the movement.