Fysiqal

Dynamic Core · Beginner

Machine Crunch

Isolation dynamic core exercise using machine.
Movement pattern
Dynamic Core
Difficulty
Beginner
Equipment
Machine
Mechanics
Isolation
Sides
Bilateral
Main plane
Sagittal

Free account. Log your sets of Machine Crunch and each workout shows your best set by estimated 1RM.

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How to do the Machine Crunch

Not yet reviewed — the technique guide for this exercise hasn't been signed off, so it isn't published here yet.

Muscles worked

Primary

Secondary

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.

  • Spine flexionprimary action

    Rectus abdominis (prime mover, high emphasis); External oblique (synergist, moderate emphasis); Internal oblique (synergist, moderate emphasis)

  • Hip flexionsecondary action

    Iliopsoas (synergist, low emphasis); Rectus femoris (synergist, low emphasis)

Related exercises

All dynamic core exercises →

From the Library

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