Legs · Leverage Machine
Lever One Leg Extension
How to do the lever one leg extension, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.
- Equipment
- Leverage Machine
- Difficulty
- Beginner
- Logged as
- Weighted reps
- Movement
- Extension
- Mechanic
- Isolation
How to do it
Sit in a leg extension machine with your back against the pad and the front of one ankle under the padded roller. Grip the handles for stability and extend that knee to lift the weight until your leg is nearly straight. Pause and squeeze, then lower under control and finish all reps before switching legs.
- 1Feel your quad contract strongly as you straighten your knee
- 2Pause and squeeze at the top, then lower slowly to feel the stretch
- 3Keep your back against the pad and your hips planted in the seat
Common mistakes
- Do not snap your knee into a hard lockout
- Do not lean back or arch your lower back to move the weight
- Do not use momentum; control the lift and the lowering
Muscles worked
The lever one leg extension mainly works the quads.
- QuadsPrimary
- GlutesMinor
- HamstringsMinor
- CalvesMinor
- Hip FlexorsMinor
Kovo programs the lever one leg 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 quads exercises
- How to do the resistance band squat
- How to do the resistance band squat to press
- How to do the resistance band thruster
- How to do the resistance band squat walk
- How to do the barbell squat
- How to do the barbell bulgarian split squat
Last reviewed June 2026.