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  1. Home
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  3. Exercises
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  5. Core & Abs
  6. /
  7. Arm Slingers Hanging Straight Legs

Exercise guide

Arm Slingers Hanging Straight Legs

  • Intermediate
  • Compound
  • Rep-based
  • Lower legs
  • Upper legs
  • Waist

This exercise utilizes hanging arm slings to isolate the core, specifically targeting the lower abdominals and obliques through a controlled lateral leg-raising motion. By removing grip strength as a limiting factor, it allows for deeper focus on pelvic tilt and rotational stability.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Arm Slingers Hanging Straight Legs demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Abs
  • Obliques

Secondary

  • Erector spinae

Equipment

  • Pull up bar

Setup

  1. Secure the ab straps to a pull-up bar or power rack at a height that allows your feet to hang clear of the floor.
  2. Slide your arms through the slings so the padding supports your upper arms near the armpits, and grip the top of the straps firmly.
  3. Allow your body to hang in a neutral position with your legs straight, feet together, and core pre-engaged.

How to do it

  1. Exhale as you lift your straight legs upward and out to one side in a sweeping 'slinging' arc toward your shoulder.
  2. At the top of the movement, focus on crunching your side to maximize oblique contraction.
  3. Inhale as you slowly lower your legs back to the center starting position using a 2-second eccentric tempo.
  4. Repeat the movement by slinging your legs to the opposite side, alternating for the desired number of reps.

Form checklist

  • Keep your knees locked and legs fully extended throughout the entire set.
  • Avoid using momentum or swinging your torso to lift your legs.
  • Ensure your lower back rounds slightly at the top to fully engage the rectus abdominis.
  • Keep your shoulders depressed and away from your ears to maintain stability in the slings.

Pro tips

  • Visualize drawing a wide 'V' shape with your toes to ensure you are hitting the obliques effectively.
  • Squeeze your inner thighs together throughout the movement to create more midline stability and engage the adductors.

Make it harder

  • Add ankle weights to increase the lever arm resistance.
  • Incorporate a 2-second isometric hold at the peak of each lateral raise to maximize time under tension.

Frequently asked

What muscles does the arm slingers hanging straight legs work?
The arm slingers hanging straight legs primarily targets the abs and obliques, and also works the erector spinae as secondary muscles.
What equipment do you need for the arm slingers hanging straight legs?
The arm slingers hanging straight legs uses pull up bar.
Is the arm slingers hanging straight legs good for beginners?
The arm slingers hanging straight legs is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • 45 Degrees Arms PlankIntermediate · abs, deltoids, obliques, and pectorals
  • 90 To 90Beginner · abs, glutes, obliques, and quadriceps
  • 90 To 90 SwitchIntermediate · abs, glutes, obliques, and quadriceps
  • Air BikeIntermediate · abs and obliques

Train it with Crucible Fit.

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