All Exercises

Seated 8 Leg Crunch

Strengthen your core and sculpt your obliques with the Seated 8 Leg Crunch. This bodyweight exercise targets your abs and hip flexors for improved

Intermediate
Compound
Pull
1 min per set30s rest

Description

A seated exercise that targets the abs, using the body's own weight to provide resistance.

How to Do Seated 8 Leg Crunch

  1. 1
    Setup

    Sit on the floor with your knees bent, feet flat on the ground, and your hands placed behind you for support, with fingers pointing forward or slightly out.

  2. 2
    Setup

    Lean your torso back slightly, engaging your core, and lift your feet off the floor so your shins are parallel to the ground.

  3. 3

    Exhale as you simultaneously pull both knees towards your chest while twisting your torso, aiming to bring your knees towards your right elbow.

  4. 4

    Inhale as you slowly extend your legs back to the starting position, maintaining the torso lean and keeping your feet off the floor.

  5. 5

    Exhale again as you pull your knees towards your chest, this time twisting your torso to bring your knees towards your left elbow.

  6. 6

    Inhale and return to the starting position with control, completing one full repetition (one crunch to each side).

Tips

  • Actively pull your belly button towards your spine throughout the movement to ensure your rectus abdominis and obliques are doing the work, not just your hip flexors.
  • Avoid using momentum; perform each crunch slowly and deliberately, especially during the eccentric (lowering) phase, to maximize muscle time under tension.
  • Exhale forcefully as you crunch your knees towards your chest and twist, which helps to further engage your deep abdominal muscles and stabilize your spine.
  • Keep your torso stable and avoid excessive rocking or swaying. Use your hands for light support, but try not to heavily rely on them to maintain balance.

Common Mistakes

  • ×Rounding the Lower Back: Avoid excessively rounding your lumbar spine; instead, maintain a slight natural curve by keeping your core braced and leaning back only as far as you can maintain good posture.
  • ×Using Momentum: Do not swing your legs or body to complete the crunch; instead, perform the movement with controlled muscle contraction, focusing on the squeeze and release.
  • ×Insufficient Twist: Failing to adequately twist the torso reduces oblique engagement; ensure you actively rotate your upper body to bring your knees towards the opposing elbow on each side.

Variations

Related Exercises

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