CTAR stands for Chin Tuck Against Resistance. It is an exercise developed in speech therapy clinics for patients with swallowing difficulties after stroke. The exercise loads the suprahyoid muscles under the jaw, which are the same muscles that lift the hyoid bone and determine the visible jaw to neck angle.
Speech therapists have used CTAR for over fifteen years to rehabilitate swallowing. Only recently has the wider community realized the aesthetic implication: strengthening those muscles also sharpens the jawline.
How CTAR works
The exercise is mechanically simple. You place a soft rubber ball (or purpose built CTAR device) between your chin and the top of your chest. Then you push your chin down into the ball, engaging the suprahyoid muscles to move the mandible downward against the resistance.
The suprahyoid muscles have two natural jobs: lifting the hyoid during swallowing, and helping open the mouth by depressing the mandible when it is fixed at the joint. CTAR exploits the second job. The chin tuck against the ball creates a downward mandibular pull against isometric resistance. The muscles fire hard.
Two protocols are standard:
- Sustained CTAR. Push the chin down against the ball and hold for 60 seconds. Three repetitions with a rest between.
- Pulsed CTAR. Push the chin down against the ball, release, repeat. Thirty pulses. Three sets.
Done together, this is about a fifteen minute session. Daily.
What the research shows
Studies in the swallowing literature have measured suprahyoid muscle activation on EMG during CTAR and confirmed strong recruitment of the mylohyoid, geniohyoid, and anterior digastric muscles. Clinical trials in dysphagia patients show measurable improvement in swallowing function after four to six weeks of daily CTAR.
Studies on CTAR for aesthetic purposes are sparser but the mechanism is the same. If you hypertrophy the muscles under the jaw, the jaw to neck angle sharpens.
Where CTAR came from
CTAR was developed as an easier alternative to the Shaker exercise, another suprahyoid strengthening protocol that requires the patient to lie flat and lift the head to look at their toes. The Shaker exercise is effective but difficult for elderly stroke patients. CTAR gives similar suprahyoid activation without the neck strain.
The exercise is now standard in speech therapy for post stroke dysphagia, in some sleep apnea clinics, and increasingly in aesthetic training protocols.
CTAR pros and cons
Pros:
- Cheap. A stress ball works.
- Documented in the medical literature.
- Directly loads the suprahyoid group.
- Works for both swallowing and aesthetic goals.
Cons:
- Hard to progress. You can only push so hard, and adding resistance is mechanically awkward.
- Uncomfortable at the chin over time.
- Requires focused attention (not something you can do while watching TV).
- Fifteen minutes per day is a real time commitment.
CTAR vs breathing resistance training
Both methods load the suprahyoid muscles, but through different reflexes.
CTAR activates the swallowing pattern of suprahyoid contraction. The muscles fire because they are helping depress the jaw against resistance.
Inspiratory resistance training (used by HYOIDR) activates the airway dilator reflex. The muscles fire because they are stabilizing the airway against negative pressure. Same muscles, different trigger. Details in the upper airway dilator reflex article.
The main practical difference is progression. Inspiratory devices have adjustable resistance settings, so as your muscles adapt you can turn up the load. CTAR resistance is set by the ball you use, and going harder means finding a firmer ball. Progression stalls faster.
Both are legitimate. Many people use them together.
Frequently asked questions
Does CTAR really work for the jawline?
Yes indirectly. CTAR loads the suprahyoid muscles that lift the hyoid bone. When those muscles hypertrophy, the visible jaw to neck angle sharpens.
How long until CTAR shows results?
Swallowing improvements appear in the medical literature within four to six weeks. Visible aesthetic changes typically take six to twelve weeks.
Do I need a special CTAR device?
No. A soft rubber stress ball works fine. Purpose built CTAR devices exist and are sometimes more comfortable, but they are not necessary.
Is CTAR safe?
Yes for healthy adults. It was developed for elderly stroke patients. Chin soreness or mild neck fatigue can occur, which resolves with rest.
CTAR or HYOIDR: which is better?
Both work. Inspiratory resistance training progresses more easily and is more comfortable long term. CTAR has stronger direct swallowing benefits. Many people do both. See the home training article for full comparison.
Related reading
- How to get a better jawline (complete guide) — how CTAR fits in the broader intervention hierarchy.
- The science hub — CTAR evidence base and related suprahyoid research.
- HYOIDR jawline trainer — the easier daily protocol targeting the same muscle group.