Abs · Machine

Crunch — Machine

Target musclesAbs · Obliques · Serratus

Crunch — Machine
Description

Controlled trunk curling to target the abdominals.

01 · Setup

Set up the movement

  • Adjust the machine supports to stay aligned throughout.
  • Keep your pelvis secure and back supported.
  • Keep your neck neutral and shoulders down.
  • Position yourself to maintain a comfortable range.
02 · Execution

Perform the rep

  1. Curl your spine progressively as you rise.
  2. Contract firmly at the top without pulling on your neck.
  3. Lower vertebra by vertebra into a stretch.
Technique cue

Curl with your abdominals without pulling with your arms.

Common mistakes
  • pulling your head with your hands
  • rising too quickly
  • dropping back without control
  • arching the back at the top
  • forcing a range beyond your mobility
Safety notes

Risks of poor execution

  • The guided path reduces sideways instability.
  • Forcing the range can still overload the joints.

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