The STNR reflex: The bridge to crawling
W sitting, head resting on a hand, legs wrapped around the chair. Here’s what the symmetrical tonic neck reflex is, why crawling matters, and how to help.
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By Adi and Dana Latter, Melillo Method certified practitioners · Updated 14 November 2026
STNR reflex quick facts
- Also called
- The crawling reflex
- Appears
- Around 6 to 9 months after birth
- Usually fades by
- Around 9 to 11 months
- What it does
- Helps a baby push up onto hands and knees, as a bridge to crawling
What is STNR?
The STNR is a short lived reflex that turns up after birth, just when a baby is getting ready to move. When they lift their head, their arms straighten and their bottom sinks back. When they drop their head, their arms bend and their bottom lifts.
You’ve probably seen this stage. Babies rock back and forth on hands and knees, as if they’re revving an engine. That rocking is the STNR at work.
For a baby to actually crawl, this reflex has to step aside, so that the head, arms and legs can move independently. Crawling itself is thought to help that happen. It’s one reason crawling is such an important stage.
What it looks like in a baby
You’ll see it when your baby gets onto hands and knees and rocks. Once they crawl smoothly, with their head free to look around, the reflex is usually settling.
Signs STNR may still be active
Some practitioners, including us, see these patterns in children whose STNR reflex hasn’t fully settled:
- Sits in a W shape on the floor
- Slumps at the table, rests their head on a hand, or lies across the desk
- Wraps their legs around the chair legs
- Skipped crawling, bottom shuffled, or crawled for only a short time
- Finds copying from the board slow and tiring
- Messy eater, missing their mouth or spilling when they look down
- Clumsy, or struggles with swimming strokes and catching
Why it can matter
If looking down at a book still makes the arms want to bend and the body want to fold, sitting upright becomes hard physical work. A child might slump, fidget or lie on the desk. They’re not being lazy. They’re finding ways to stay comfortable. Copying from a board is even harder, because every glance up and down shifts their body again.
How we check for it and work with it
We look at your child on hands and knees as they move their head up and down, watching what their arms and back do. We also look at how they sit, how they crawl, and how their eyes move between near and far.
In the Melillo Method, the STNR links into posture, core strength and how the upper and lower body work together. We look at it alongside balance and the other reflexes, so your child can sit, focus and learn without fighting their own body.
New to the approach? Read our guide to the Melillo Method in the UK.
What you can do at home
Crawling games are the heart of it. Make it fun and do it often.
Cat and cow rocking
On hands and knees, look up while gently dipping the back, then look down while rounding the back like a cat. Slowly, five to ten times.
Crawling obstacle courses
Tunnels, cushions and chairs to crawl under and over. Crawling at any age still counts.
Bear walks
Walking on hands and feet with straight arms and legs, bottom in the air. Great for strength through the shoulders and hips.
A few minutes every day does more than a long session once a week. Consistency is what makes the difference.
Want a step by step plan?
Our free primitive reflexes course is a full course, not just an intro. It shows you how to work on primitive reflexes at home, step by step, with simple daily routines.
Start the free courseQuestions parents ask about STNR
When should the STNR go?
Is W sitting a sign of a retained STNR?
My child never crawled. Does that matter?
Can older children still integrate the STNR?
How do I start at home?
This page is general information for parents, written by Adi and Dana Latter, who are not medical doctors. It is not medical advice and does not replace your GP, health visitor, paediatrician or other health professional.
Ready to start?
Our free course is the easiest first step. If you’d rather talk it through, book a free 15 minute call with Adi or Dana and we’ll tell you honestly whether reflex work is worth trying for your child.
