Breath stacking (unassisted)
Taking a breath in, holding it, then adding another breath on top, two or three times, fills the lungs more fully than one breath can. That stretches the chest and can make a weak cough stronger. NICE recommends it, with assisted coughing, as the first thing to try for a weak cough in motor neurone disease (MND), and NHS teams teach it in other conditions that weaken the breathing muscles. Your MND team or a respiratory physiotherapist teaches it first. There is no 3D demo, because the figure can't show the air going in: follow the written steps.
Movement guide
Breath stacking (unassisted)
Source-researched guide. Clinical review is pending.
How to move
- Sit upright and relaxed, in a supportive chair or propped up in bed.
- Breathe out fully.
- Take a big breath in and hold it for a few seconds.
- Take another breath in on top and hold again. Repeat until you can't fit in any more: usually 3 or 4 breaths in all.
- Hold for 2 to 3 seconds, then let the air out slowly, or use it for a strong cough to clear any phlegm.
- Breathe normally for a while before the next round.
Form cues
- Keep your shoulders soft.
- Small sips of air on top are fine.
- A little light-headedness is normal: take your time, and stop if you need to.
Practice and cautions
Repeat up to 5 times, resting between each round (Leeds Teaching Hospitals). Do it every day, 1 to 4 sessions a day, with at least 10 minutes between sessions so you don't breathe too fast (Lancashire Teaching Hospitals' MND team). Your own team may set a different routine.
Learn it from your MND team or a respiratory physiotherapist first, who will check it suits you and show you how. Don't do it within an hour of eating or drinking, or within an hour of a tube feed. Stop and get medical help if you have sudden chest pain or see blood in your phlegm. If you can't hold your breath because the muscles of your mouth and throat are weak, your team may use a lung volume recruitment bag instead (assisted breath stacking), which isn't suitable for everyone and must only be used as you were taught. This is movement education, not an assessment or treatment prescription. Stop for sharp or increasing pain, dizziness, numbness or tingling; seek individual guidance for symptoms, injury or restrictions.
Sources and review status
Sources support the educational description; they do not establish that this exercise is suitable for you.
- NICE NG42 · Motor neurone disease: assessment and management (2016, last updated 2019), recommendations 1.14.1 to 1.14.4 on cough ↗
- Lancashire Teaching Hospitals NHS Foundation Trust 2025 · Breath stacking and lung volume recruitment bag (MND team patient leaflet) ↗
- Leeds Teaching Hospitals NHS Trust 2024 · Using your cough peak flow meter: a guide for people with MS (patient leaflet with breath stacking steps) ↗
- MND Association 2026 · Support for breathing problems with MND (information sheet 8A; read as an archived copy) ↗
- Birnkrant 2018 · Duchenne muscular dystrophy care considerations, part 2: breathing, heart, bones and orthopaedics (international consensus, Lancet Neurology) ↗
No variation is labeled clinically validated.
What it works
Muscles
Works the chest. Individual muscles are not yet classified.
Equipment
None: body weight and floor space.
Level
Beginner.
Workouts that use it
Guides that use it
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Questions people ask
What muscles does the Breath stacking (unassisted) work?
It works the chest.
What equipment do I need for the Breath stacking (unassisted)?
No equipment: your body weight and a little floor space.
Is the Breath stacking (unassisted) good for beginners?
It is graded beginner, so it suits most people starting out.