Technique & progression
Finding neutral spine
The short answer
Neutral spine means the natural curves of the spine preserved with the pelvis level — neither tucked under nor tipped forward. Lying supine, the pubic bone and the two hip points should sit in roughly the same horizontal plane.
How to find it lying down
Lie on your back with knees bent. Place your fingertips on the two bony points at the front of your pelvis and your thumbs on your pubic bone. In neutral, those three points sit level with each other.
Tip the pelvis forward and the hip points drop below the pubic bone; tuck it under and they rise above. Neutral is between, and for most people there is a small natural gap under the lower back.
Neutral versus imprint
Imprint is the deliberate flattening of the lower back toward the mat, achieved by a slight posterior pelvic tilt. It is not a corrected version of neutral — it is a different position used for different exercises.
Teachers cue imprint when the exercise loads the trunk beyond what someone can control in neutral. It is a scaling tool, not the goal.
- Neutral — natural curves preserved, pelvis level
- Imprint — lower back gently flattened, slight posterior tilt
- Neutral is the default; imprint is used to scale demand
- Neither is "correct posture" — both are working positions
Why it matters
Neutral is the position in which the spine tolerates load best and in which the deep stabilisers work most efficiently. Loading a spine outside neutral is not inherently harmful, but doing it repeatedly under spring load is where problems accumulate.
It is also the reference point from which teachers judge everything else. Without it, "your pelvis moved" has no meaning.
It varies between people
Neutral is not one shape. Lumbar curve varies considerably between individuals, and someone with a naturally deeper curve has a larger gap under the lower back in their neutral than someone with a flatter one.
Chasing a standard shape rather than your own neutral is a common and counterproductive error.
Frequently asked questions
- How do I find neutral spine?
- Lying supine, place fingertips on the two front hip points and thumbs on the pubic bone. In neutral those three points sit level with each other.
- Should my back be flat on the mat?
- Not in neutral — most people have a small natural gap. Flattening it is imprint, a different position used to scale demand on harder exercises.
- Is neutral spine the same for everyone?
- No. Lumbar curve varies considerably, so a deeper natural curve means a larger gap under the lower back in that person’s neutral.
- When should I use imprint instead?
- When an exercise loads the trunk beyond what you can control in neutral. It is a scaling tool rather than a correction.