Elbow to Knee Sit up

Target your obliques and build core strength with the Elbow to Knee Sit-up. This rotational sit-up variation effectively engages your waist muscles for a

Intermediate
Compound
Pull
1 min per set30s rest

Description

A sit up variation where you bring your elbow to the opposite knee to engage the obliques.

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How to Do Elbow to Knee Sit up

  1. 1
    Setup

    Lie on your back with your knees bent, feet flat on the floor, and hands lightly placed behind your head, elbows wide.

  2. 2
    Setup

    Cross one ankle over the opposite knee (e.g., right ankle over left knee), allowing the top knee to fall open slightly.

  3. 3

    Exhale as you engage your core, lifting your head, shoulders, and upper back off the floor while rotating your torso.

  4. 4

    Aim to bring the elbow opposite to the elevated knee towards that knee (e.g., left elbow towards right knee), focusing on contracting your oblique muscles.

  5. 5

    Inhale as you slowly and with control lower your torso back to the starting position, maintaining tension in your core.

  6. 6

    Complete all repetitions on one side before switching to the other, or alternate sides for each repetition.

Tips

  • Focus on initiating the movement from your obliques and abdominal muscles, not by pulling on your neck with your hands.
  • Keep your lower back pressed into the floor as much as possible throughout the movement to protect your spine and maximize core engagement.
  • Control both the concentric (lifting) and eccentric (lowering) phases of the movement to fully engage the muscles and prevent momentum from taking over.
  • Keep your elbows wide throughout the exercise to prevent neck strain and ensure your shoulders are rotating properly.

Common Mistakes

  • ×Pulling on the neck instead of engaging the core: Lightly support your head with your hands, allowing your abdominal muscles to drive the lift and rotation.
  • ×Rushing the movement and losing control: Slow down the entire exercise, especially the lowering phase, to maximize time under tension and muscle activation.
  • ×Lifting the lower back excessively off the floor: Actively brace your core and press your lumbar spine towards the floor to maintain stability and prevent arching.

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Frequently Asked Questions

Is Elbow to Knee Sit up good for beginners?
Elbow to Knee Sit up is rated intermediate. Beginners can still attempt it with lighter weight and careful form, but it's best to master easier variations first.
What equipment do I need for Elbow to Knee Sit up?
You need Body weight to perform Elbow to Knee Sit up. If you don't have this equipment, look for variations that target the same muscles with what you have available.
What are the best tips for Elbow to Knee Sit up?
Focus on initiating the movement from your obliques and abdominal muscles, not by pulling on your neck with your hands. Keep your lower back pressed into the floor as much as possible throughout the movement to protect your spine and maximize core engagement. Control both the concentric (lifting) and eccentric (lowering) phases of the movement to fully engage the muscles and prevent momentum from taking over. Keep your elbows wide throughout the exercise to prevent neck strain and ensure your shoulders are rotating properly.
What are common mistakes when doing Elbow to Knee Sit up?
Pulling on the neck instead of engaging the core: Lightly support your head with your hands, allowing your abdominal muscles to drive the lift and rotation. Rushing the movement and losing control: Slow down the entire exercise, especially the lowering phase, to maximize time under tension and muscle activation. Lifting the lower back excessively off the floor: Actively brace your core and press your lumbar spine towards the floor to maintain stability and prevent arching.

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Elbow to Knee Sit up

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