# Chin tuck (chin-down posture): plain-language definition

Canonical: [https://followyourswallow.com/glossary/chin-tuck-chin-down-posture](https://followyourswallow.com/glossary/chin-tuck-chin-down-posture)

A swallowing posture where the chin is lowered toward the neck during the swallow, which changes the shape of the throat.

## In plain language

Chin tuck is a body-position change, not a food change. The person lowers the chin toward the neck or chest at the moment of swallowing, then swallows in that position. You may see it written as "chin-down posture," "head flexion," or "chin to chest" — reports use these labels somewhat interchangeably.

Lowering the chin changes the shape of the throat while food or liquid passes through. ASHA describes the chin-down position as one that may bring the base of the tongue closer to the back wall of the throat, narrow the opening to the airway, and widen the vallecular space — a small pocket that sits just above the voice box.

"Chin down" and a strict "chin tuck" are not always the same amount of movement, and imaging research has found they do not have identical effects. One published study compared the two and found that only the strict tuck significantly narrowed the front-to-back space at the entrance to the voice box, while it also restricted forward movement of the hyoid bone. That is one reason this is not a one-size-fits-all posture: an SLP may test it during an instrumental swallow study to see, on the pictures, what it actually does for one specific person.


## Why a clinician looks at this

An SLP looks at posture because the same person's swallow can look different in different head positions. If chin tuck appears in your report, it usually means it was tried or considered for you specifically. It is not a general safety tip, and it is not something to start on your own — your SLP may teach it to you if it is a fit, and researchers have noted it does not help every patient.

## Sources

- [ASHA Practice Portal: Adult Dysphagia](https://www.asha.org/practice-portal/clinical-topics/adult-dysphagia/)


Source checked: 2026-08-07

Clinical review: SLP review in progress

## Safety

This is a general definition, not an interpretation of a person's report. Ask the clinician who performed the study what the term means for that person.