Exercise guide
Bodyweight Kneeling Sissy Squat
- Intermediate
- Compound
- Rep-based
- Lower legs
- Upper legs
The kneeling sissy squat is a powerful bodyweight isolation exercise that targets the quadriceps by emphasizing a deep stretch and controlled eccentric loading. It effectively isolates the knee extensors without the need for a leg extension machine.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Kneel on a soft mat or padded surface with your knees hip-width apart.
- Position your torso upright so there is a straight line from your knees through your hips to your shoulders.
- Place the tops of your feet flat on the floor behind you.
- Cross your arms over your chest or hold them straight out in front of you for balance.
How to do it
- Inhale and slowly lean your entire torso backward by hinging only at the knees, keeping your hips fully extended.
- Lower yourself as far as possible while maintaining a rigid line from your knees to your head, aiming for a deep stretch in the quads.
- Exhale and drive your shins into the floor to pull your body back to the starting upright position.
- Maintain a slow, controlled tempo, specifically focusing on a 3-4 second lowering phase.
Form checklist
- Keep your glutes squeezed tight to prevent your hips from hinging or sitting back.
- Maintain a neutral spine and engaged core to protect the lower back.
- Ensure your knees remain parallel and do not flare outward during the descent.
- Stop the descent if you feel any sharp pain in the knee joint; focus on muscle tension instead.
Pro tips
- Focus on the 'stretch-mediated hypertrophy' by pausing for one second at the bottom of the movement where the quads are most elongated.
- Think about pushing your shoelaces into the floor to initiate the upward phase, which helps engage the rectus femoris more effectively.
Make it harder
- Hold a weight plate or dumbbell against your chest to increase the resistance.
- Extend your arms overhead during the descent to lengthen the lever arm and increase the torque on the quadriceps.
Frequently asked
- What muscles does the bodyweight kneeling sissy squat work?
- The bodyweight kneeling sissy squat primarily targets the quadriceps, and also works the adductors and hip flexors as secondary muscles.
- What equipment do you need for the bodyweight kneeling sissy squat?
- The bodyweight kneeling sissy squat requires no equipment — just your body weight.
- Is the bodyweight kneeling sissy squat good for beginners?
- The bodyweight kneeling sissy squat is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.