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← Back to Sleep Health homeOrofacial Myofunctional Therapy (OMFT) is a non-invasive treatment that uses specific exercises to strengthen the muscles of the face, mouth, and throat.
OMFT (also called OMT or Myofunctional Therapy) is essentially physical training for the muscles that control breathing, chewing, and swallowing. Its primary goal is to address functional and structural issues in the oral and throat areas.
The therapy consists of repetitive isotonic and isometric exercises (like moving or holding pressure) intended to:
Obstructive Sleep Apnea (OSA) occurs when muscles supporting the upper airway relax too much during sleep, causing the airway to collapse. OMFT aims to strengthen these dilator muscles (like the genioglossus in the tongue) to keep the airway open during the night.
Evidence for Adults with OSA: Studies show that OMFT is an important complementary therapy that achieves positive results, particularly in adult patients:
Reduced OSA Severity: OMFT significantly reduces the severity of sleep apnea, measured by the Apnea-Hypopnea Index (AHI) (reductions generally ranging from -9.54 to -10.2 events/hour when compared to minimal care or sham treatments).
Improved Symptoms: Patients experience a significant reduction in daytime sleepiness (measured by the Epworth Sleepiness Scale, ESS), better sleep quality (Pittsburgh Sleep Quality Index, PSQI), and a decrease in snoring.
Better Oxygenation: It improves minimum oxygen saturation ($\text{SpO}_2$) during sleep.
CPAP Adherence: OMFT improves adherence for patients using the standard treatment (CPAP).
OMFT protocols vary, but they are typically delivered by a healthcare professional. A typical protocol involves 3 to 7 weekly therapy sessions, lasting 15 to 30 minutes each, and is often maintained for a period of 3 months or more. Patients perform specific oropharyngeal exercises (e.g., tongue elevation, soft palate vocalization, or facial muscle exercises) during supervised sessions and through home training.
Outcomes are assessed using a combination of methods:
Objective Sleep Tests: Polysomnography (PSG) or respiratory polygraphy measures the AHI and oxygen saturation.
Subjective Questionnaires: Tools like the ESS measure daytime sleepiness and the PSQI measures sleep quality.
Physical Changes: Healthcare professionals look for a reduction in neck circumference, which suggests that the upper airway has been physically remodeled by the exercises.
Muscle Strength Measurement: Devices like the Iowa Oral Performance Instrument (IOPI) track changes in tongue and lip strength.
The Iowa Oral Performance Instrument (IOPI) is a device that measures muscle strength by calculating the maximum pressure (Pmax) generated by the tongue or lips when pressing an air-filled bulb.
A doctor uses IOPI results to:
Document Weakness: Objectively confirm if muscle weakness is contributing to the patient's oral motor disorder or OSA.
Guide Therapy: The doctor sets a specific target value (a required pressure) for the patient to reach during exercises. The device gives instant feedback (often a green light) when the target is hit, ensuring the patient is exercising forcefully enough.
Monitor Progress: By repeatedly measuring strength and endurance (how long they can hold 50% of Pmax), the doctor can document if the OMT program is successfully improving muscle function over time.
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