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  7. Lying Crossed Legs Twist

Exercise guide

Lying Crossed Legs Twist

  • Beginner
  • Compound
  • Rep-based
  • Waist

This exercise targets the obliques and lower abdominals through controlled spinal rotation while providing a functional stretch for the glutes and hips. It is highly effective for improving core stability and rotational mobility using only your body weight.

Reviewed by the Crucible team · Updated June 2026

Watch the Lying Crossed Legs Twist demonstrationGuided video and your full workout live in the Crucible app.

Muscles worked

Primary

  • Abs
  • Glutes
  • Obliques

Secondary

  • Erector spinae

Equipment

  • Body weight

Setup

  1. Lie flat on your back on a mat with your arms extended out to the sides in a 'T' position, palms facing down for stability.
  2. Bend your knees and place your feet flat on the floor, hip-width apart.
  3. Cross your right ankle over your left knee, allowing the right knee to fall outward in a figure-four shape.

How to do it

  1. Inhale and slowly lower your legs toward the left side, aiming to bring the sole of your right foot toward the floor while keeping your shoulders grounded.
  2. Pause for one second at the bottom of the movement to feel the stretch in your outer hip and glute.
  3. Exhale and engage your obliques to pull your legs back to the center starting position with control.
  4. Complete your repetitions on one side, then switch legs to repeat the movement in the opposite direction.

Form checklist

  • Keep both shoulder blades pinned to the floor throughout the entire rotation.
  • Move your legs slowly and under control rather than using momentum.
  • Maintain a neutral neck position, looking straight up at the ceiling.
  • Ensure the movement comes from the waist and hips, not just the legs.

Pro tips

  • Focus on the 'pull' from your side-abs (obliques) to bring your legs back to center rather than pushing off the floor with your bottom foot.
  • Press your palms firmly into the ground to create a stable anchor point for your upper body.

Make it harder

  • Lift the bottom foot off the floor into a 90-degree tabletop position to increase the leverage and demand on the core.
  • Extend the top leg straight out to the side as you rotate to increase the weight of the lever.

Frequently asked

What muscles does the lying crossed legs twist work?
The lying crossed legs twist primarily targets the abs, glutes, and obliques, and also works the erector spinae as secondary muscles.
What equipment do you need for the lying crossed legs twist?
The lying crossed legs twist requires no equipment — just your body weight.
Is the lying crossed legs twist good for beginners?
Yes. The lying crossed legs twist is a beginner-friendly movement and a strong foundation to build on.

Related exercises

  • 90 To 90Beginner · abs, glutes, obliques, and quadriceps
  • 90 To 90 Press StretchIntermediate · abs, glutes, and obliques
  • 90 To 90 SwitchIntermediate · abs, glutes, obliques, and quadriceps
  • Ardha Matsyendrasana Yoga PoseIntermediate · abs, glutes, obliques, and trapezius

Train this with a plan, not guesswork

Crucible builds the lying crossed legs twist into a precise program around your body, equipment, location, and time.

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