Half roll back (Pilates C-curve roll back)

Sitting with knees bent and hands behind the thighs, you tuck the pelvis and roll partway back into a C-shaped curve, pause, then roll up to sitting: the safest way to learn the roll-up.

Roll-up (Pilates) family

Half roll back (Pilates C-curve roll back)

Easier option

Sitting with knees bent and hands behind the thighs, you tuck the pelvis and roll partway back into a C-shaped curve, pause, then roll up to sitting: the safest way to learn the roll-up.

DemandEasy

Equipment requiredFloor space

Muscle focusAbs · Hip flexors

Gets into position, then repeats the movement. Technical checks passed; qualified exercise review is pending.

Watch it bigger, and flip through similar moves, in the studio.Open in the studio

Source-researched guide. Clinical review is pending.

How to move

Sit tall with knees bent, feet flat and hip-width apart, hands lightly holding the backs of your thighs.
Breathe in and lengthen up through the crown of your head.
Breathe out, draw the lower belly in, tilt the pelvis under and roll back slowly until the arms are nearly straight. Stop well before you lose control.
Breathe in and hold the curve.
Breathe out and roll forward to tall sitting, rebuilding the spine from the bottom up.

Form cues

Round over an imaginary beach ball; do not lean back like a door.
Keep the feet heavy on the floor.
Avoid: pulling yourself up with your arms, or hunching the shoulders.

Practice and cautions

5 to 8 reps. A suggested starting point. No trial has tested this move on its own.

This rounds the spine. With osteoporosis, keep the roll small or choose a neutral-spine move instead, as a UK consensus advises for repeated bending. Sit on padding if your tailbone is sore. This is movement education, not an assessment or treatment prescription. Stop for sharp or increasing pain, dizziness, numbness or tingling; seek individual guidance for symptoms, injury or restrictions.

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Sources and review status

Sources support the educational description; they do not establish that this exercise is suitable for you.

No variation is labeled clinically validated.

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What it works

Muscles

Main: Abs. Also: Hip flexors.

Equipment

None: body weight and floor space.

Level

Beginner. See the easier and harder options above.

Similar moves

Roll-over (Pilates roll-over with legs spread)Advanced · No equipment

Wall roll-down (wall Pilates)Beginner · A wall

Corkscrew (Pilates)Advanced · No equipment

Criss-cross (Pilates) demonstrated on the 3D figure

3D demoCriss-cross (Pilates)Intermediate · No equipment

Double straight-leg stretch (Pilates lower lift) demonstrated on the 3D figure

3D demoDouble straight-leg stretch (Pilates lower lift)Advanced · No equipment

Double-leg stretch (Pilates) demonstrated on the 3D figure

3D demoDouble-leg stretch (Pilates)Intermediate · No equipment

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Questions people ask

What muscles does the Half roll back (Pilates C-curve roll back) work?

Mainly the abs, with help from the hip flexors.

What equipment do I need for the Half roll back (Pilates C-curve roll back)?

No equipment: your body weight and a little floor space.

Is the Half roll back (Pilates C-curve roll back) good for beginners?

It is graded beginner, so it suits most people starting out. When it feels easy, try the Roll-up (Pilates).

How do I make the Half roll back (Pilates C-curve roll back) harder?

Progress to the Roll-up (Pilates), or add load, range or slower lowering once your form is solid.