Fysiqal

Squat · Intermediate

Sissy Squat

Compound squat exercise using bodyweight.
Sissy Squat demonstration (no audio).
Movement pattern
Squat
Difficulty
Intermediate
Equipment
Bodyweight
Mechanics
Compound
Sides
Bilateral
Main plane
Sagittal

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How to do the Sissy Squat

Cues reviewed by Kwabena Osei on

Setup

Stand holding a stable support at chest height, heels can rise off the floor throughout this movement (unlike a standard squat).

  1. Lean back from the knees while rising onto your toes, keeping hips extended (don't fold at the hips -- this is a knee-dominant movement, not a squat pattern).

  2. Lower until you feel a strong stretch through the front of the thigh.

  3. Reverse by driving the knees forward and standing back up.

Common mistakes

  • Bending at the hips partway through, which turns this into a different movement entirely and takes tension off the target muscle.

  • Going for full range before building real control -- this movement punishes poor control more than most, since there's no way to "muscle through" a loss of balance.

Muscles worked

How the knowledge graph models this movement

Each joint action, with the role and emphasis the graph assigns each muscle. These are qualitative anatomical labels, not measured muscle activation.

  • Knee extensionprimary action

    Rectus femoris (prime mover, high emphasis); Vastus lateralis (prime mover, high emphasis); Vastus medialis (prime mover, high emphasis); Vastus intermedius (prime mover, high emphasis)

  • Hip flexionsecondary action

    Rectus femoris (stabilizer, moderate emphasis); Iliopsoas (stabilizer, low emphasis)

  • Spine extensionsecondary action

    Rectus abdominis (stabilizer, moderate emphasis); Erector spinae (stabilizer, low emphasis)

All squat exercises →

From the Knowledge Library

Educational content only — not medical advice. Consult a qualified professional for individual guidance, especially around injury, pregnancy or medical conditions.