percussion chest physiotherapy
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chest physiotherapy percussion airway clearance guidance
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Percussion chest physiotherapy is an airway-clearance technique in which a cupped hand rhythmically claps the chest wall to loosen retained mucus. It is usually combined with positioning, deep breathing, huff coughing, or suction so secretions can be brought up and expelled.
Purpose
- Mobilize thick airway secretions
- Improve mucus clearance and reduce airway obstruction
- Often used when cough is weak or mucus is difficult to clear, such as in cystic fibrosis, bronchiectasis, neuromuscular weakness, or selected postoperative patients
In cystic fibrosis, cough combined with chest vibration or percussion is a standard airway-clearance approach, alongside alternatives such as positive expiratory pressure, huff coughing, flutter devices, and oscillating vests. Murray & Nadel's Textbook of Respiratory Medicine, 2-Volume, p. 584. No single airway-clearance method has been conclusively shown superior for all patients, so the method should be individualized. Fishman's Pulmonary Diseases and Disorders, p. 858.
Basic technique
- Assess first: ensure the person is stable and has a clear indication, usually retained secretions.
- Position: place the affected lung segment uppermost when postural drainage is prescribed. Avoid routine head-down positioning, particularly in infants and people with reflux risk.
- Hand shape: cup the hand, keeping fingers and thumb together. The palm should not be flat on the chest.
- Percuss: rhythmically clap over the chest wall, generally over a towel or thin clothing, for a few minutes per target area. The sound should be hollow, not a painful slap.
- Avoid the spine, sternum, breasts, kidneys, abdomen, and bony prominences.
- Clear secretions: follow with vibrations during expiration if trained, then huff cough, cough, or suction as appropriate.
- Reassess: stop if there is pain, distress, desaturation, dizziness, marked wheeze, or bleeding.
Do not perform without clinical review if there is
- Unstable chest wall injury or rib fractures
- Active or significant hemoptysis
- Severe osteoporosis or painful bone metastases
- Unstable cardiovascular status or serious arrhythmia
- Untreated pneumothorax
- Recent thoracic surgery or a site that must not be compressed
- Raised intracranial pressure, severe reflux, or aspiration risk, especially if positioning is involved
Important points
- It is not routinely recommended for uncomplicated bronchiolitis; trials have not demonstrated benefit from percussion or vibration in that setting.
- Percussion treats retained secretions, not every cough, pneumonia, or breathlessness episode.
- A respiratory physiotherapist should teach the location, positioning, duration, and frequency for the individual condition. The CF physiotherapy standards advise considering modified drainage and percussion as adjuncts when a person cannot effectively perform self-directed airway-clearance techniques.
vibration
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chest physiotherapy manual vibration technique airway clearance patient information
Chest vibration is a manual airway-clearance technique used to help move loosened mucus from smaller airways toward larger airways, where it can be removed by huffing or coughing. It is often performed after percussion and during postural drainage.
Technique
- The physiotherapist or trained caregiver places both hands flat on the relevant chest-wall area.
- At the start of exhalation, they apply gentle downward compression with a rapid fine trembling movement of the hands.
- The movement stops when exhalation ends.
- It is repeated for several breaths, then followed by a huff cough or cough to clear secretions.
Chest shaking is a stronger, coarser version of vibration and is generally used only by trained practitioners.
Uses
Vibration can assist mucus clearance in people with retained secretions, including selected patients with cystic fibrosis, bronchiectasis, weak cough, or during an infective exacerbation. It is part of the group of bronchial-hygiene techniques that includes coughing, postural drainage, percussion, and chest vibration. Fishman's Pulmonary Diseases and Disorders, Bronchial Hygiene section.
Safety
It should be taught and individualized by a respiratory physiotherapist. Avoid or seek specialist advice with:
- Rib fracture, unstable chest injury, severe osteoporosis, or chest-wall pain
- Significant hemoptysis
- Untreated pneumothorax
- Severe cardiac instability
- Recent chest surgery where pressure is restricted
- Severe reflux or aspiration risk when drainage positioning is used
It should not be painful. Stop if it causes pain, dizziness, worsening breathlessness, oxygen desaturation, or bleeding.
The Cystic Fibrosis Trust airway-clearance guide describes vibration/chest shaking as short manual movements used with airway-clearance positioning and breathing techniques.
difference between percussion and vibration
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Cystic Fibrosis Trust percussion vibration chest physiotherapy difference
| Feature | Percussion | Vibration |
|---|---|---|
| Also called | Chest clapping | Chest vibration or chest shaking |
| Hand position | One or two cupped hands | Flat hands placed firmly on chest wall |
| Movement | Rhythmic clapping/tapping | Fine, rapid rhythmic squeezing or trembling |
| When applied | Usually throughout breathing, often during positioning or deep breaths | Only during exhalation |
| Main action | Loosens thick secretions from airway walls | Moves loosened secretions toward larger airways |
| Next step | Often followed by vibration and huff cough | Followed by huff cough/cough to expel mucus |
In short:
- Percussion loosens mucus.
- Vibration mobilizes the loosened mucus upward during expiration.
Both are manual chest-physiotherapy techniques and may be combined with postural drainage and breathing exercises. The Cystic Fibrosis Trust guidance describes percussion as cupped-hand rhythmic clapping, whereas vibrations are short rhythmic chest-wall squeezes during breathing out.
They should be performed only after instruction from a respiratory physiotherapist, especially in people with rib fractures, osteoporosis, chest pain, hemoptysis, or recent chest surgery.
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