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  7. Lever Ab Swing

Exercise guide

Lever Ab Swing

  • Intermediate
  • Compound
  • Rep-based
  • Waist

The Lever Ab Swing targets the rectus abdominis and obliques by providing constant resistance through a fixed arc, allowing for deep core compression and hypertrophy. It is highly effective for isolating the abdominal wall while minimizing hip flexor involvement compared to floor-based exercises.

Reviewed by the Crucible team · Updated June 2026

Watch the Lever Ab Swing demonstrationGuided video and your full workout live in the Crucible app.

Muscles worked

Primary

  • Abs
  • Obliques

Secondary

  • Erector spinae

Equipment

  • Leverage machine

Setup

  1. Adjust the machine seat height so the pivot point of the lever aligns with your mid-torso/waist.
  2. Sit with your back firmly against the pad and place your feet securely on the footrests or floor for stability.
  3. Grasp the handles with a neutral grip, keeping your elbows tucked and arms stationary.
  4. Load the weight plates onto the lever arm and ensure your core is braced before starting.

How to do it

  1. Exhale and contract your abdominals to pull the lever forward and downward in a controlled swinging motion.
  2. Focus on 'crunching' your ribcage toward your pelvis, using your core to drive the movement rather than pulling with your arms.
  3. Pause for one second at the bottom of the movement to emphasize the peak contraction.
  4. Inhale as you slowly return the lever to the starting position using a 3-second eccentric tempo, maintaining tension throughout.

Form checklist

  • Keep your lower back pressed firmly against the backrest throughout the entire set.
  • Avoid using momentum or 'swinging' the weight; keep the movement slow and deliberate.
  • Ensure your arms act only as hooks; do not use your lats or biceps to pull the lever.
  • Maintain a neutral neck position, looking slightly forward rather than tucking your chin into your chest.

Pro tips

  • Visualize pulling your belly button toward your spine before you begin the rep to engage the transverse abdominis.
  • Focus on the 'mind-muscle connection' by imagining your ribs and hips closing like a book during the contraction.

Make it harder

  • Incorporate a 3-second isometric hold at the point of maximum contraction on every rep.
  • Perform '1.5 reps' by completing a full contraction, returning halfway, contracting again, and then returning to the start.

Frequently asked

What muscles does the lever ab swing work?
The lever ab swing primarily targets the abs and obliques, and also works the erector spinae as secondary muscles.
What equipment do you need for the lever ab swing?
The lever ab swing uses leverage machine.
Is the lever ab swing good for beginners?
The lever ab swing is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • 3/4 Sit-UpBeginner · abs and obliques
  • 45 Degree Bicycle Twisting CrunchIntermediate · abs and obliques
  • 45 Degree Lean Back Alternate Knee RaiseBeginner · abs and obliques
  • 45 Degrees Arms PlankIntermediate · abs, deltoids, obliques, and pectorals

Train this with a plan, not guesswork

Crucible builds the lever ab swing into a precise program around your body, equipment, location, and time.

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