Exercise guide
Double Knee Drive
- Beginner
- Compound
- Timed hold
- Lower legs
- Waist
The Double Knee Drive is a dynamic standing core exercise that builds hip flexor strength and abdominal definition while improving balance. It utilizes a repetitive 'standing crunch' motion to target the lower abs and obliques through explosive, unilateral movements.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Stand tall with your feet hip-width apart and your core tightly engaged.
- Raise both arms diagonally overhead or hold them at chest height with your elbows bent.
- Shift your weight slightly onto your left leg, keeping a soft bend in the knee to maintain stability.
How to do it
- Drive your right knee up toward your chest while simultaneously pulling your hands down toward your knee, exhaling sharply on the effort.
- Briefly tap your right toe back to the floor and immediately drive the same knee up a second time for the 'double' rep.
- Step back to the starting position and repeat the two-pulse sequence on the left leg.
- Continue alternating sides, maintaining a brisk and rhythmic tempo while inhaling as you reset between drives.
Form checklist
- Keep your chest lifted and avoid rounding your upper back as you pull your arms down.
- Focus on pulling your ribs toward your pelvis to engage the abdominals during the drive.
- Maintain a slight bend in the standing leg to protect the joint and improve balance.
- Land softly on the ball of your foot between reps to minimize impact.
Pro tips
- Visualize a 'standing crunch'—the power should come from your core pulling the knee up, not just the hip flexor.
- Squeeze the glute of your standing leg throughout the movement to create a rock-solid base of support.
Make it harder
- Add a small hop on the standing leg during each knee drive to increase the plyometric intensity and heart rate.
- Hold a light medicine ball or dumbbell to increase the resistance on the core and shoulders during the pull-down phase.
Frequently asked
- What muscles does the double knee drive work?
- The double knee drive primarily targets the abs and obliques, and also works the adductors, glutes, and hamstrings as secondary muscles.
- What equipment do you need for the double knee drive?
- The double knee drive requires no equipment — just your body weight.
- Is the double knee drive good for beginners?
- Yes. The double knee drive is a beginner-friendly movement and a strong foundation to build on.