# Tuck-Up

URL: https://heatsy.app/ex/tuck-up

Also known as: Knee Tuck Sit-Up, Tuck Sit-Up, Lying Tuck-Up

Body region: Core, Legs

## Muscles

- Main: Rectus Abdominis, Iliopsoas
- Helps: External Oblique, Internal Oblique, Rectus Femoris
- Holds: Transversus Abdominis

## Technique

1. Lie on your back with legs extended and arms overhead or by your sides.
2. Brace your abs and curl the chest up while pulling your knees in toward your chest at the same time.
3. Meet in the middle with arms wrapping around the shins.
4. Extend back to the start under control.

### Cues

- Move the torso and knees together.
- Control the lowering.

### Common mistakes

- Throwing the arms to build momentum.
- Dropping the legs quickly.
- Letting the lower back arch off the floor.

## Alternatives

- [Jackknife Sit-Up](https://heatsy.app/ex/jackknife-sit-up)
- [Sit-Up](https://heatsy.app/ex/sit-up)