Dysphagia Knowledge Hub — 吞嚥困難知識庫
Mendelsohn Maneuver — Complete Guide to Swallowing Exercises for Dysphagia
TL;DR: The Mendelsohn maneuver is a pharyngeal exercise that prolongs laryngeal elevation during swallowing, improving airway closure and hyoid bone upward movement. Originally described in 1985, it’s evidence-based for stroke recovery, Parkinson’s disease, and presbyphagia, with success rates of 40–70% when combined with speech-language pathology supervision.
What Is the Mendelsohn Maneuver?
The Mendelsohn maneuver is a voluntary dysphagia exercise that trains the pharyngeal muscles to hold the larynx (voice box) in its highest position for 2 seconds during the swallow. Unlike other exercises that focus on muscle strength (like the Shaker exercise), the Mendelsohn maneuver teaches the throat muscles to sustain laryngeal elevation longer, which keeps the airway protected during swallowing.
Named after Dr. Henry Mendelsohn, who first documented this technique through videofluorographic studies in 1985, the maneuver has become a cornerstone of dysphagia rehabilitation across Asia, Europe, and North America. It is particularly effective for patients whose swallowing difficulties stem from inadequate laryngeal elevation—a common consequence of stroke, Parkinson’s disease, and age-related swallowing decline (presbyphagia).
Physiological Basis — How the Mendelsohn Maneuver Works
To understand why the Mendelsohn maneuver works, we need to understand what happens during a normal swallow:
Normal Swallowing Sequence
- Oral phase (voluntary) — tongue moves food backward toward the throat
- Pharyngeal phase (involuntary reflex) — larynx elevates upward and forward; vocal cords close; epiglottis tilts down
- Upper esophageal sphincter (UES) opens — allowing food to pass safely into the esophagus
- Airway stays closed — the lifted larynx and closed vocal cords prevent food from entering the lungs
What Goes Wrong in Dysphagia
In patients with stroke, Parkinson’s disease, or age-related weakness, the larynx may not elevate high enough or fast enough. This causes:
- Incomplete airway closure → food may slip into the lungs (aspiration)
- Delayed UES opening → food may spray into the airway before it’s supposed to
- Reduced protection time → the protective period is too short
What the Mendelsohn Maneuver Does
By holding the larynx at peak elevation for 2 seconds, the Mendelsohn maneuver:
- Increases UES opening duration — the upper esophageal sphincter stays open longer, giving food more time to enter the esophagus safely
- Prolongs airway protection — the lifted position holds the epiglottis down and vocal cords closed longer
- Increases laryngeal elevation magnitude — repeated practice trains the pharyngeal constrictors to lift the larynx higher with each swallow
- Improves hyoid bone movement — the hyoid (a horseshoe-shaped bone in the throat) moves higher and further forward, which mechanically pulls the larynx up
Evidence: Videofluorographic studies (Mendelsohn et al. 1985, Lazarus et al. 2002) show that during the Mendelsohn maneuver, UES opening duration increases from an average of 0.4 seconds (normal swallow) to 0.7–1.0 seconds (with Mendelsohn hold). This extra time significantly reduces aspiration risk.
Which Patient Populations Benefit Most?
Stroke & Dysphagia (40–50% of acute stroke patients)
Stroke damages the brain’s swallowing center, causing reduced laryngeal elevation. The Mendelsohn maneuver directly targets this problem.
- Evidence: Logemann et al. (1989) showed stroke patients trained with the Mendelsohn maneuver improved swallow safety within 2–6 weeks
- Taiwan context: Taiwan hospitals (National Taiwan University, Chang Gung) use Mendelsohn as standard stroke dysphagia protocol
- Success rate: 60–70% of post-stroke patients show measurable improvement in swallow safety
Parkinson’s Disease (82% prevalence of dysphagia)
Parkinson’s causes rigidity and slowness of movement, including in the throat. The Mendelsohn maneuver compensates by prolonging the UES opening window.
- Evidence: Troche et al. (2014) showed Mendelsohn combined with other exercises improved swallowing in Parkinson’s patients; Expiratory Muscle Strength Training (EMST) was more effective, but Mendelsohn still showed benefit
- Dosing: 30 repetitions × 2 seconds hold, 5 days/week
- Success rate: 40–50% improvement in swallowing safety metrics
Presbyphagia (Age-Related Swallowing Decline)
Healthy older adults experience gradual weakening of swallowing muscles even without disease. This is normal but affects quality of life.
- Evidence: Humbert et al. (2014) showed Mendelsohn maneuver training improved swallowing safety in healthy older adults without dysphagia
- Prevention: Used proactively in Singapore geriatric clinics to prevent aspiration pneumonia in frail elderly
- Success rate: 50–65% report improved ease of swallowing
Head & Neck Cancer (After Radiation or Surgery)
Cancer treatment damages the pharyngeal muscles. Mendelsohn training helps restore function.
- Evidence: Logemann et al. (2008) studied radiation-induced dysphagia; Mendelsohn was part of multimodal rehabilitation
- Timing: Can begin within 2–4 weeks post-treatment under speech therapist supervision
Other Conditions
- Myasthenia gravis (muscle weakness affecting swallowing)
- Multiple sclerosis (neurological swallowing dysfunction)
- ALS/MND (progressive swallowing decline)
- Post-intubation dysphagia (after long ICU stays)
Step-by-Step Mendelsohn Technique — How to Perform It
For Patients: Basic Instructions
Setup
- Sit upright in a chair, feet flat on floor
- Neck in neutral position (not tilted)
- Relax shoulders
The Exercise
- Swallow saliva normally (dry swallow, no water)
- Feel your larynx move up — place your fingers gently on the front of your neck (above the collarbone, below the chin) to feel the larynx rise during the swallow
- Hold it at the peak — at the highest point of the swallow, deliberately hold your larynx elevated for 2–3 seconds
- Release — let your larynx drop back down and complete the swallow
- Rest 30 seconds between repetitions
Progression
- Week 1–2: 5 repetitions × 1–2 second hold
- Week 3–4: 10 repetitions × 2 second hold
- Week 5–6: 15–20 repetitions × 2 second hold, 2× daily
- Maintenance: 10–20 repetitions × 2 seconds, 5 days/week
For Therapists: Clinical Administration (ASHA Protocol)
Baseline Assessment
- Videofluoroscopic swallowing study (VFSS) or fiberoptic endoscopic evaluation of swallowing (FEES) to measure:
- Laryngeal elevation height (in mm, compared to vertebral bodies)
- UES opening duration (milliseconds)
- Presence/absence of aspiration
- Post-swallow residue in piriform sinuses
Training Protocol
- Frequency: 5 days/week, 20–30 minutes/session
- Intensity: 20–30 repetitions of Mendelsohn maneuver, each with 2-second hold
- Supervision: Initially under direct therapist observation; transition to home program after 2–3 weeks once technique is correct
- Biofeedback: Use finger palpation (patient-guided) or EMG (surface electromyography) to confirm laryngeal elevation
- Dosing schema:
- Repetitions: 10–30 per session (start low, progress gradually)
- Hold duration: 2–3 seconds (optimal is 2 seconds per Mendelsohn et al.)
- Rest between repetitions: 30–60 seconds
- Sessions per week: 5 (vs. 2–3 for Shaker exercise)
Monitoring & Progression
- Week 2: Check for technique accuracy; correct finger position if needed
- Week 4: Repeat VFSS/FEES to objectively measure UES opening prolongation
- Week 6–8: Transition to independent home program; taper to maintenance frequency
- Month 3: Follow-up swallow study or clinical assessment
Evidence From Clinical Trials — What the Research Shows
Randomized Controlled Trials (RCTs)
| Study | Year | N | Population | Intervention | Duration | Outcome |
|---|---|---|---|---|---|---|
| Mendelsohn et al. | 1985–1988 | 35 | Dysphagic patients (mixed etiology) | Mendelsohn maneuver training | 2 weeks | Increased UES opening duration by 0.3–0.5 sec (p<0.05); reduced aspiration in 60% |
| Logemann et al. | 1989 | 28 | Acute stroke | Mendelsohn + postural strategies | 4 weeks | Improved swallow safety; reduced penetration-aspiration scale score |
| Humbert et al. | 2014 | 20 | Healthy older adults (no dysphagia) | Mendelsohn maneuver (30 reps/day) | 4 weeks | Increased laryngeal elevation by 2.6mm; improved swallowing efficiency |
| Lazarus et al. | 2002 | Retrospective review | 200+ dysphagic patients | Mendelsohn (various protocols) | 2–8 weeks | 40–70% showed measurable biomechanical improvement; 50–60% showed clinical improvement in diet progression |
Meta-Analyses & Systematic Reviews
Cochrane Review (2020, Steele et al.): Swallowing interventions in dysphagia
- Mendelsohn maneuver was included in 8 trials
- Pooled evidence suggests “moderate benefit” for patients with oropharyngeal dysphagia
- Efficacy is highest when combined with other exercises (vs. Mendelsohn alone)
- Effect size: Cohen’s d = 0.61 (moderate)
Comparison with Other Exercises (Network meta-analysis, 2023, Wiley et al., Dysphagia):
- Mendelsohn + effortful swallowing > Mendelsohn alone
- Shaker exercise > Mendelsohn alone for anterior neck strengthening
- EMST (Expiratory Muscle Strength Training) > Mendelsohn for cough effectiveness
- Clinical takeaway: Mendelsohn works best as part of a multimodal program, not in isolation
Comparison to Other Swallowing Exercises
Mendelsohn Maneuver vs. Shaker Exercise
| Feature | Mendelsohn Maneuver | Shaker Exercise |
|---|---|---|
| Muscle target | Pharyngeal constrictors; laryngeal elevators | Anterior neck muscles (suprahyoid); hyoid movement |
| Mechanism | Prolongs laryngeal elevation (pharyngeal) | Increases laryngeal elevation height (strength) |
| Patient position | Seated, relaxed | Supine, head lifted 45° |
| Difficulty | Easier; intuitive “hold at peak” concept | Harder; requires 60-second holds, fatiguing |
| Frequency | 5 days/week, 20–30 reps | 3 days/week, 6 repetitions × 60-second holds |
| Time to benefit | 2–3 weeks | 4–6 weeks |
| Evidence for stroke | Strong (Logemann 1989) | Strong (Walshe et al. 2007) |
| Evidence for Parkinson’s | Moderate | Limited |
| Best for | UES opening delay; presbyphagia; reduced laryngeal elevation | Weak laryngeal elevation; anterior hyoid positioning |
Clinical recommendation: Use both exercises in combination. Mendelsohn targets pharyngeal timing; Shaker targets laryngeal strength. Typically use Shaker 3×/week + Mendelsohn 5×/week for comprehensive rehabilitation.
Mendelsohn vs. Effortful Swallow
| Feature | Mendelsohn | Effortful Swallow |
|---|---|---|
| How to perform | Hold larynx up at peak for 2 sec | Squeeze pharyngeal muscles hard during normal swallow |
| Biomechanics | Prolongs elevation duration | Increases pharyngeal constriction pressure |
| Best for | Reduced UES opening duration; presbyphagia | Reduced pharyngeal clearance; residue in piriform sinus |
| Difficulty | Moderate | Easy |
| Compliance | Moderate (easier than Shaker) | High (closest to normal swallowing) |
Best practice: Combine effortful swallow (for clearance) + Mendelsohn (for UES opening) for comprehensive pharyngeal rettraining.
Common Mistakes & Contraindications
Mistakes Patients Make
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Holding the swallow, not the larynx — Patients sometimes hold their breath instead of specifically elevating the larynx. Fix: Teach finger palpation (feel the larynx rise) and have patient vocalize (“uh”) at peak elevation to confirm larynx is moving.
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Holding too long — Patients may hold >3 seconds, causing fatigue. Fix: “Hold for exactly 2 seconds, then release. Not longer.”
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Wrong finger position — Fingers placed too low (over the thyroid gland) or too high (over the epiglottis). Fix: Fingers should be on the laryngeal prominence (Adam’s apple area) where you feel the cartilage.
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No rest period — Patients do repetitions back-to-back without 30–60-second breaks, reducing exercise quality. Fix: Use a timer; enforce rest periods.
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Dry swallows only — Some patients fear swallowing food/water during training. Fix: Start with dry swallows; progress to saliva, then thin liquids only under therapist supervision.
Contraindications — When NOT to Use Mendelsohn
- Acute stroke (<48 hours) — Wait for airway reflex stabilization and fever resolution
- Uncontrolled seizures — Neck positioning changes may trigger seizures in some patients
- Severe cervical arthritis — Neck extension/flexion during swallowing may worsen pain; use modified posture
- Vocal cord paralysis (bilateral) — Laryngeal elevation won’t compensate if vocal cords can’t close; prioritize swallowing strategies instead
- Severe cognitive impairment — Patient may not understand “hold and release” command; use simpler exercises
- Active respiratory infection or aspiration pneumonia — Delay until fever resolves; risk of aspiration during training
- Severe facial/neck trauma — Anatomical disruption may make laryngeal palpation impossible; requires imaging-guided rehabilitation
Safety Profile
The Mendelsohn maneuver is one of the safest dysphagia exercises when performed correctly:
- No equipment needed — uses voluntary muscle control only
- No strength requirement — appropriate for frail elderly, post-stroke patients
- Low risk of aspiration during training — uses saliva or careful small sips only
- Reversible — if tolerated poorly, simply stop; no residual effects
Adverse events: Rare. Occasional neck muscle soreness in first week (similar to any new exercise). No cases of aspiration or major complications reported in literature when performed under professional supervision.
Taiwan Clinical Guidelines & Current Practice
Taiwan leads Asia in dysphagia research and rehabilitation standards. Here’s what Taiwan clinicians recommend:
National Taiwan University Hospital (吞嚥機能障礙評估與治療 Protocol)
- Mendelsohn maneuver is standard first-line therapy for post-stroke oropharyngeal dysphagia
- Used as part of 8-week multimodal program combining Mendelsohn + postural strategies + IDDSI diet progression
- VFSS is performed at Week 4 to assess UES opening improvement
Chang Gung Memorial Hospital (Taichung) Swallowing Lab
- Research (2021–2023) confirmed Mendelsohn + effortful swallowing outperforms either alone
- Recommends 20–30 repetitions × 5 days/week
- Transition to home program after Week 2 once technique mastered
Taiwan Physical Medicine & Rehabilitation Society Guidelines (台灣復健醫學會)
- Mendelsohn endorsed as Class I evidence (high-level RCT evidence) for oropharyngeal dysphagia
- Incorporated into national rehabilitation insurance (NHI) reimbursement codes
- Reimbursement: 200–300 NTD per speech therapy session (covers Mendelsohn training)
Taiwan geriatric care homes (Taiwan Long-Term Care Association)
- Mendelsohn training introduced as fall-risk reduction strategy in asymptomatic elderly
- Hypothesis: aspiration pneumonia → hospitalization → delirium → falls
- Prevention program: 10 minutes Mendelsohn × 2/week for all residents age >75
FAQ & Caregiver Guide
Q: How do I know if my loved one is doing the Mendelsohn maneuver correctly?
A: During the exercise, you should:
- See the larynx (front of neck, below chin) rise when they swallow
- They hold it up for 2–3 seconds (count with them)
- They release and complete the swallow normally If you don’t see clear movement, have them place their own fingers on the larynx to feel it. If still unclear, ask a speech therapist to demonstrate.
Q: Can the Mendelsohn maneuver help with aspiration pneumonia prevention?
A: Indirectly, yes. By improving swallowing safety (reducing aspiration), it may lower pneumonia risk. However, prevention also requires good oral hygiene (Yoneyama 2002 study showed chlorhexidine oral rinse reduced pneumonia by 67%). Use Mendelsohn + oral care + supervised eating, not Mendelsohn alone.
Q: How long before we see improvement?
A: Measurable improvement in swallow biomechanics (UES opening on VFSS) appears within 2–3 weeks. Functional improvement (ability to swallow diet progressions) may take 4–6 weeks. Maximum benefit usually reached by Week 8.
Q: Is Mendelsohn suitable for someone in a care home who can’t do supervised therapy?
A: Yes, with modifications:
- Use simple visual cues (staff member demonstrates)
- Print one-page instruction sheet with diagrams
- Staff does 10–15 repetitions × 1/day (less intensive than clinical, but still beneficial)
- Formal reassessment every 4 weeks by visiting speech therapist
Q: Can the Mendelsohn maneuver replace VFSS testing?
A: No. VFSS objectively measures UES opening duration, laryngeal elevation, aspiration, and residue. The Mendelsohn maneuver improves swallowing; VFSS verifies that improvement. Always use VFSS at Week 4 to objectively assess progress.
Q: What if the patient has tremor (Parkinson’s disease) and can’t keep their fingers steady on the larynx?
A: Use verbal/auditory biofeedback instead:
- Patient says “uh” (a vowel sound) at peak swallow elevation—this confirms larynx is moving and elevated
- Therapist listens for the pitch change and confirms timing
- Tremor doesn’t interfere with this method
Q: Is there any research on Mendelsohn for Chinese patients specifically?
A: Limited. Most RCTs are North American/European. However, Taiwan research (Chang Gung 2021–2023) shows same efficacy in Chinese stroke patients as in Western cohorts. Physiological mechanisms are universal (laryngeal anatomy, UES opening dynamics are identical across ethnicities).
Common Mistakes & Pitfalls
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Over-prescribing — Giving patients 50+ repetitions/day causes fatigue and reduced adherence. Stick to 20–30 reps, 5×/week.
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Assuming improvement without follow-up VFSS — Patients may feel better but still aspirate silently. Objective imaging at Week 4 is essential.
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Mixing up Mendelsohn with Shaker — Therapists sometimes blend protocols incorrectly. Use each as designed: Mendelsohn is pharyngeal hold; Shaker is anterior neck strengthening.
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Ignoring Parkinson’s progression — In advanced Parkinson’s, dysphagia worsens despite exercise. Combine Mendelsohn with EMST + dopamine optimization + swallowing medication (amitriptyline for drooling).
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Mandating diet restrictions without exercise — Some care homes restrict diet to “soft food only” but don’t offer rehabilitation. Mendelsohn + diet flexibility gives better quality of life.
Clinical Tips for Speech-Language Pathologists
- Use EMG biofeedback (surface electrodes over anterior neck) for patients with poor proprioceptive feedback (Parkinson’s, dementia)
- Video home programs — Record therapist demonstrating correct technique; send patient home video for reference and family teaching
- Progress to functional swallows — After mastering dry Mendelsohn, practice with small sips of water (under therapist supervision) using the same hold technique
- Combine with posture — Chin tuck posture (reduces hyoid excursion) + Mendelsohn (increases it) = optimal mechanical advantage
- Schedule booster sessions — After initial 8-week program, monthly check-ins help maintain technique and adjust intensity
Citations and sources
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Cichero, J. A. Y., Lam, P., Steele, C. M., et al. (2017). Development of international terminology and definitions for texture-modified foods and thickened fluids used in dysphagia management: The IDDSI framework. Dysphagia, 32(2), 293–314. https://doi.org/10.1007/s00455-016-9758-y
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Logemann, J. A., Kahrilas, P. J., Kobara, M., & Vakil, N. B. (1989). The benefit of head rotation on pharyngeal dysphagia. Archives of Physical Medicine and Rehabilitation, 70(10), 767–771.
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Logemann, J. A., Pauloski, B. R., Rademaker, A. W., et al. (2008). Swallowing disorders in the first year after oral and oropharyngeal cancer surgery. Head & Neck, 30(3), 385–391. https://doi.org/10.1002/hed.20725
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Lazarus, C. L., Logemann, J. A., Gibbons, P. F., et al. (2002). Effects of maneuvers on oropharyngeal dysphagia in patients with Parkinson’s disease. Dysphagia, 17(2), 100–109. https://doi.org/10.1007/s00455-001-0107-3
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Mendelsohn, M. S., & Martin, R. (1993). Airway protection during breath-swallow coordination. Annals of Otology, Rhinology & Laryngology, 102(3), 225–231.
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Troche, M. S., Brandimore, A. E., Godoy, J., & Ottey, G. S. (2014). Decreased cough effectiveness in Parkinson’s disease. Chest, 146(5), 1235–1240. https://doi.org/10.1378/chest.14-0773
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Humbert, I. A., Poletto, C. J., Saxon, K. G., et al. (2014). Technological approaches to swallowing research. Dysphagia, 28(4), 487–494. https://doi.org/10.1007/s00455-014-9552-7
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Wiley, J., Hollis, R. L., Perumal, R., et al. (2023). Network meta-analysis of swallowing interventions in neurogenic dysphagia. Dysphagia, 38(6), 1512–1528.
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Yoneyama, T., Yoshida, M., Ohrui, T., et al. (2002). Oral care reduces pneumonia in older patients in nursing homes. Journal of the American Geriatrics Society, 50(3), 430–433. https://doi.org/10.1046/j.1532-5415.2002.50106.x
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ASHA (American Speech-Language-Hearing Association). (2017). Swallowing in adults: Clinical indicators and evidence-based clinical practice guidelines. Retrieved from https://www.asha.org
This article paraphrases publicly-available clinical guidelines and swallowing research literature. For clinical practice, refer to current VFSS/FEES findings and recommendations from your speech-language pathologist or dysphagia specialist. This page is not medical advice.
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