Exercise guide
Deep Knee Bend
- Beginner
- Compound
- Rep-based
- Lower legs
- Upper legs
The deep knee bend is a functional squat variation that maximizes quadriceps and glute activation by utilizing a full range of motion. It builds foundational lower-body strength while significantly improving mobility in the hips, knees, and ankles.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Stand with your feet slightly wider than shoulder-width apart and your toes pointed slightly outward (about 15-30 degrees).
- Engage your core and pull your shoulder blades back to maintain a tall, upright posture.
- Extend your arms straight out in front of you at shoulder height to act as a counterbalance.
How to do it
- Inhale as you initiate the movement by simultaneously hinging at the hips and bending your knees.
- Lower your body under control until your thighs pass below parallel, aiming for the deepest position your mobility allows without your heels lifting.
- Exhale as you drive through the mid-foot to return to a standing position, keeping your chest lifted throughout the ascent.
- Maintain a tempo of 3 seconds down, a 1-second pause at the bottom, and 1 second to stand back up.
Form checklist
- Keep your heels glued to the floor throughout the entire range of motion.
- Ensure your knees track in the same direction as your toes and do not cave inward.
- Maintain a neutral spine and avoid excessive rounding of the lower back at the bottom.
- Keep your weight centered over your mid-foot rather than shifting too far forward onto your toes.
Pro tips
- At the bottom of the squat, think about 'spreading the floor' with your feet to better engage your glutes and stabilize the knees.
- Focus on keeping your torso as vertical as possible to shift more of the load onto the quadriceps.
Make it harder
- Perform '1.5 reps' by squatting to full depth, rising halfway up, returning to the bottom, and then standing all the way up.
- Increase the time under tension by using a 5-second eccentric (lowering) phase.
Frequently asked
- What muscles does the deep knee bend work?
- The deep knee bend primarily targets the glutes and quadriceps, and also works the adductors, hamstrings, and hip flexors as secondary muscles.
- What equipment do you need for the deep knee bend?
- The deep knee bend requires no equipment — just your body weight.
- Is the deep knee bend good for beginners?
- Yes. The deep knee bend is a beginner-friendly movement and a strong foundation to build on.