Back · Machine
Machine Back Extension
How to do the machine back extension, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.

- Equipment
- Machine
- Difficulty
- Beginner
- Logged as
- Weighted reps
- Movement
- Extension
- Mechanic
- Isolation
How to do it
Sit on the machine with your back against the pad. Extend your spine to push the pad backward, focusing on engaging your lower back. Slowly return to the starting position.
- 1Press your back into the pad and extend through your hips so you feel your lower back and glutes contracting
- 2Maintain a neutral spine and engage your core, you should feel the movement originate from your hips, not your arms
- 3Use a smooth, controlled tempo; the contraction should feel deliberate and not jerky
Common mistakes
- Don't hyperextend or snap your spine backward; there should be no sudden thrusting
- Avoid rounding your shoulders or slumping forward at the start of each rep
- Don't rely on momentum; control the weight throughout the range
Muscles worked
The machine back extension mainly works the lower back, with the glutes and hamstrings assisting.
- Lower BackPrimary
- GlutesSupport
- HamstringsSupport
- Upper TrapsMinor
- Upper AbsMinor
Machine Back Extension strength standards
See how your machine back extension ranks, from Bronze to Champion. These are the same standards the Kovo app uses to rank your lifts.
Bronzee1RM102.5 lb
Silvere1RM190 lb
Golde1RM307.5 lb
Platinume1RM435 lb
Diamonde1RM510 lb
Champione1RM575 lb
Find your rank
Enter your best set. We estimate your 1RM and match it to a tier.
Kovo tracks this rank automatically as you train, across every lift, and levels you up as you get stronger.
Kovo programs the machine back extension for you and tracks it every session.
We build your whole program, drop the right lifts into each workout, and adjust your weights as you get stronger. Free on iOS and Android.
More back exercises
- How to do the archer pull-up
- How to do the resistance band assisted pull-up
- How to do the machine assisted pull-up
- How to do the back extension bench back extension
- How to do the back lever
- How to do the resistance band good morning
Last reviewed April 2026.
