Kneeling Quad Extension
The kneeling quad extension is an advanced bodyweight exercise that eccentrically loads the quadriceps by leaning backward from a kneeling position. It builds significant quad strength and is used as a progression toward exercises requiring knee flexion control.
How to do it
- Kneel on both knees on a mat with your body upright.
- Slowly lean back by extending at the knee joint, lowering your torso toward the ground.
- Keep your hips forward and your body in a straight line from head to knees.
- Hold for a moment at the lowest comfortable point, then contract your quads to return to upright.
- Repeat for the desired number of repetitions.
Form cues
- Keep your body in a straight line from head to knees.
- Engage your core to prevent your lower back from arching.
- Move slowly and control the descent.
- Squeeze your quads to return to the starting position.
Breathing: Inhale as you slowly lean back, and exhale as you contract your quads to press yourself back to the starting position.
Common mistakes
- Bending at the hips instead of leaning straight back, which reduces the load on the quadriceps.
- Arching the lower back during the lean, which can cause unnecessary strain on the lumbar spine.
- Dropping too fast without control, which removes the eccentric muscle stimulus and increases joint stress.
Muscles worked
Primary: quads. Secondary: core, hip flexors.
Suggested sets & reps
Get fitter
3 sets x 8 reps, rest 60 s
Lose weight
3 sets x 8-10 reps, rest 60 s
Build muscle
3-4 sets x 6-10 reps, rest 90 s
Easier, harder & alternatives
Make it easier
Make it harder
Alternatives
Take care if…
- If you feel sharp knee or lower back pain, ease off and choose a gentler option.
General educational guidance, not medical advice. Stop on sharp pain and check with a qualified professional if unsure.
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Start free →Frequently asked questions
Why do I feel this in my lower back?
If your hips bend or your lower back arches, the tension shifts away from your quads and onto your spine. Keep your core tight and your torso straight throughout the movement.
Is this exercise safe for beginners?
This is an advanced bodyweight movement that requires significant knee joint flexibility and quad strength. Beginners should master basic squats or lunges first.
How can I make it easier?
Reduce your range of motion by only leaning back a few inches until your quad strength and knee comfort improve.