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  7. Bodyweight Kneeling Sissy Squat

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

Watch the Bodyweight Kneeling Sissy Squat demonstrationGuided video and your full workout live in the Crucible app.

Muscles worked

Primary

  • Quadriceps

Secondary

  • Adductors
  • Hip flexors

Equipment

  • Body weight

Setup

  1. Kneel on a soft mat or padded surface with your knees hip-width apart.
  2. Position your torso upright so there is a straight line from your knees through your hips to your shoulders.
  3. Place the tops of your feet flat on the floor behind you.
  4. Cross your arms over your chest or hold them straight out in front of you for balance.

How to do it

  1. Inhale and slowly lean your entire torso backward by hinging only at the knees, keeping your hips fully extended.
  2. 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.
  3. Exhale and drive your shins into the floor to pull your body back to the starting upright position.
  4. 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.

Related exercises

  • 3 Point Standing HopsIntermediate · calves, glutes, hamstrings, and quadriceps
  • 4 Cone Single Foot Lateral HopsIntermediate · calves, glutes, hamstrings, and quadriceps
  • 4 Way Single Leg HopAdvanced · calves, glutes, hamstrings, and quadriceps
  • 90 To 90Beginner · abs, glutes, obliques, and quadriceps

Train this with a plan, not guesswork

Crucible builds the bodyweight kneeling sissy squat into a precise program around your body, equipment, location, and time.

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