Knee to Elbow Crunch. How-to, proper form and tips

Knee to Elbow Crunch icon

Dynamic movement strengthening abs and obliques, an alternative to the crunch.

Video demonstration

How to and step by step instructions:

  1. Lie down on your back.
  2. Place your hands behind your head.
  3. Raise your shoulders off the ground in a crunch position.
  4. Raise your legs, bending the knees in 90 degrees. This is the starting position.
  5. Extend one leg, while bringing the other knee to the opposite elbow.
  6. This is one repetition.
  7. Now switch, extending and bending alternate legs, bringing the opposite elbow to touch the knee.

Hints & tips:

  • Do not strain your neck.


  • Strengthen Abs and Obliques.

Counting & gamification:

  • Perform series of 20, meaning 10 on each leg.

Muscles worked and body parts involved:

Primary , Secondary

Primary muscles: Obliques, Abs, Hip Flexor

Secondary muscles: Lowerback, Quads

Other names

The exercise can be found with other names. Examples are:

  • Knee to Elbow Crunch
  • Alternate Knee to Elbow Crunch

Similar to Knee to Elbow Crunch

Muscle: Obliques

Muscle: Abs

Muscle: Hip Flexor

Flexibility: Hips

Category: Balance