Tuck Up

Tuck Up Exercise Description

The Tuck Up is a bodyweight core exercise that links trunk flexion with hip flexion to build midline control and coordination. It primarily targets the rectus abdominis while the hip flexors (iliopsoas and rectus femoris) drive the leg movement; the obliques and deep core musculature help stabilize the pelvis and ribcage. You’ll move between a compact “tuck” and a lengthened hollow position without letting the low back collapse into excessive extension. The goal is smooth, controlled motion—keeping the ribs “down,” pelvis slightly posteriorly tilted, and neck neutral throughout. It requires no equipment and can be adjusted easily by changing range of motion or adding light hand support for balance.

Muscle Groups: Abs, Core, Waist
Target Muscles: Rectus Abdominis
Assisting Muscles: Iliacus, Psoas Major, Rectus Femoris
Stabilizing Muscles: External Obliques, Internal Obliques, Multifidus, Quadratus Lumborum, Transversus Abdominis
Body Area: Upper Body
Body Parts: Core, Torso
Body Surface: Front
Body Symmetry: Bilateral
Equipment: Bodyweight
Exercise Patterns: Other
Exercise Type: Strength
Functional Grouping: Trunk Flexors
Joint Involvement: Multi-joint
Muscle Location: Stomach
Movement Direction: Other
Muscle Position: Anterior
Gender: Female

How To Do The Tuck Up Exercise

‘- Sit on the floor with knees bent, feet flat, and hands beside hips. Lengthen through the spine and draw shoulders down.
– Brace your abdomen as if preparing for a cough; gently posteriorly tilt the pelvis to flatten the low back.
– Lift both feet to hover, shins roughly parallel to the floor; balance on your sit bones. Reach arms forward at shoulder height; keep neck neutral.
– Extend legs forward as you lean the torso back together as one unit. Keep ribs down and low back lightly rounded—avoid arching.
– Stop before your heels or upper back touch the floor; maintain tension through the midline.
– Pull knees toward the chest while you curl the trunk, bringing ribs toward pelvis to return to the tuck.
– Move smoothly without swinging or jerking; keep thighs together and shoulders away from ears.
– Breathe: exhale as you tuck; inhale as you lengthen while keeping the abdominal brace.
– If balance is challenging, place fingertips lightly on the floor behind you or hold the backs of your thighs.
– If you feel low-back strain, reduce the leg extension range and reinforce the rib-to-pelvis connection before continuing.
– Finish by setting your feet down with control, then return to an upright seated position.

Tuck Up Tips

‘- Sit tall with a lengthened spine and draw your shoulders down before you start.
– Brace your abdomen as if preparing for a cough and gently tuck your pelvis to flatten your low back.
– Hover both feet with shins roughly parallel to the floor and balance on your sit bones.
– Reach your arms forward at shoulder height and keep your neck neutral.
– Extend your legs as you lean your torso back together as one unit, rather than moving them separately.
– Keep your ribs down and low back lightly rounded as you lengthen; avoid letting your back arch.
– Stop the lengthening phase before your heels or upper back touch the floor to maintain midline tension.
– As you return, pull your knees toward your chest while curling your trunk to bring ribs toward pelvis.
– Move smoothly without swinging or jerking, keeping your thighs together and shoulders away from your ears.
– Coordinate your breathing: exhale as you tuck and inhale as you lengthen while maintaining the abdominal brace.
– If balance is challenging, lightly place fingertips behind you or hold the backs of your thighs for support.

Tuck Up Beginner Introduction

The Tuck Up is a floor-based core movement that blends a curling action of the torso with a folding motion at the hips. It centers on the abs and hip flexors, while the side abs and deeper core muscles support the pelvis and rib cage. Throughout the exercise, the body travels between a small, compact shape and a more stretched, hollowed-out position, with the lower back gently rounded rather than sagging. This creates a strong demand for midline stability and precise coordination between upper and lower body.

The pattern starts from a seated base and shifts into a balanced “V” shape, with both legs and upper body moving together as one unit. Smooth, unhurried transitions highlight control instead of momentum, and the neck stays in line with the spine for a calm, organized posture. Breathing usually follows the motion: air moves out while folding into the tuck and in while lengthening out, as the abdominal brace remains present. The exercise uses only body weight, and range of motion or light hand contact can change how challenging it feels.