Skip to main content
Also known as: V-sit ab leg extension, Knee tuck.

​
Technique

  1. Sit on the ground, tuck your legs close to your chest, lift your feet off the ground and balance on your buttocks.
  2. Extend your legs forward while leaning slightly back to keep the balance.
  3. Then bring the legs back to the starting position.

​
Form tips

  • During the whole exercise, only your buttocks should be in contact with the ground.
  • Keep your Abs engaged.

​
Muscles

Strength

Primary

  • Abs
  • Obliques
  • Pelvis
  • Quadriceps

Secondary

  • Hip adductors
  • Rectus abdominis
  • External oblique
  • Internal oblique
  • Iliacus
  • Rectus femoris
  • Psoas major

​
Equipment

Ground (hands or body)
Ground (hands or body)

​
Appears in

Calisthenics skills
Joint movements
Trunkflexion
Hipflexion
trains stretches

​
Progressions

e02h

Chair l-sit

Novice

​
Regressions

e0gc

Assisted sitting leg extensions

Beginner
e0oo

Tuck-up

Beginner
e0xc

Butt walk

Beginner
e0ip

Tuck reverse crunch

Beginner
e06q

Lying legs raise

Beginner
e0zw

Roll up

Beginner
Want to log this exercise? Open it in Calistree. Text and images are used under CC BY-NC-ND 4.0; the video plays from the original source.