Muscular Dystrophy

A study concluded that respiratory muscle strength is enhanced by training in the patients with muscular dystrophy who are ambulatory, but inspiratory and/or expiratory training effect is specific to the trained muscles. The techniques that improve the strength of respiratory muscles should be included in the physiotherapy management of patients with muscular dystrophy1.

Comparison study of chest physiotherapy home training programmes on respiratory functions in patients with muscular dystrophy

Spinal Cord Injury

A study concluded Resistive Inspiratory Muscle Training (RIMT) can improve ventilatory function, respiratory endurance, and the perceived difficulty of breathing in patients with complete cervical spinal cord injury within half a year after trauma1.

1 Resistive inspiratory muscle training: Its effectiveness in patients with acute complete cervical cord injury


A study concluded that Inspiratory Muscle Training and close supervision can increase respiratory muscle endurance and improve well-being in patients with prior polio who use part-time assisted ventilation1.

1 Inspiratory muscle training in patients with prior polio who use part-time assisted ventilation

Parkinson’s Disease

A study concluded that inspiratory muscle performance may be improved by specific Inspiratory Muscle Training in patients with Parkinson’s Disease. This improvement is associated with a significant decrease in their perception of dyspnoea (difficult or laboured breathing; shortness of breath)1.

1 Inspiratory muscle training and the perception of dyspnea in Parkinson’s disease

Neuromuscular Disease

One study concluded: Inspiratory Muscle Training may potentially strengthen the inspiratory muscles and slow the decline in respiratory function in patients with ALS/MND1.

And another study concluded: With Inspiratory Muscle Training, respiratory muscle function can be improved in the long term of up to 2 years2.

INSPIRATIonAL–INSPIRAtory muscle training in amyotrophic lateral sclerosis

2 2 Years’ experience with inspiratory muscle training in patients with neuromuscular disorders

Heart Failure and Heart Disease

A study concluded that Inspiratory Muscle Training (IMT) using an incremental endurance test, successfully increases both inspiratory strength and endurance, alleviates dyspnea and improves functional status in chronic heart failure1.

Another study concluded that in patients with chronic heart failure and inspiratory muscle weakness, Inspiratory Muscle Training (IMT) results in marked improvement in inspiratory muscle strength, as well as improvement in functional capacity, ventilatory response to exercise, recovery oxygen uptake kinetics, and quality of life2.

Inspiratory muscle training using an incremental endurance test alleviates dyspnea and improves functional status in patients with chronic heart failure

Inspiratory muscle training in patients with heart failure and inspiratory muscle weakness: a randomized trial

Breathing Effort in other Medical Conditions 

Any condition that prevents normal physical activity can lead to inspiratory muscle weakness, and in addition to asthma and Chronic Obstructive Pulmonary Disease (COPD), Inspiratory Muscle Training (IMT), such as with POWERbreathe, has been found to be helpful for managing other medical conditions, including chronic heart failure, postoperative pulmonary complications and inspiratory stridor.

Specific Inspiratory Muscle Training (IMT) of the muscles we use to breathe, such as with POWERbreathe, has been demonstrated to increase their strength, resistance to fatigue and reduce breathlessness, as well as being helpful in managing medical conditions including:

Obstructive Sleep Apnea

‘Breathing Training Improves Sleep And Cardiovascular Health In Obstructive Sleep Apnea’

“Unfortunately, the gold-standard of treatment for Obstructive Sleep Apnea (OSA), continuous positive airway pressure (CPAP), has discouraging compliance rates. Here, we report on inspiratory muscle strength training (IMST) as a potential new treatment for OSA.”


“Results support inspiratory muscle strength training as a treatment that can improve the cardiovascular and sleep quality parameters in individuals with mild-moderate OSA.”

Read Breathing training improves sleep and cardiovascular health in Obstructive Sleep Apnea >

Abdominal Surgery

‘Pre-Operative IMT Preserves Postoperative Inspiratory Muscle Strength Following Major Abdominal Surgery’

“The aim of this pilot study was to assess the effect of pre-operative inspiratory muscle training (IMT) on respiratory variables in patients undergoing major abdominal surgery.”


“Pre-operative specific IMT improves (maximum inspiratory pressure (MIP) pre-operatively and preserves it postoperatively. Further studies are required to establish if this is associated with reduced pulmonary complications.”

Read Pre-operative inspiratory muscle training preserves postoperative inspiratory muscle strength following major abdominal surgery – a randomised pilot study >

Type 2 Diabetes

‘Inspiratory Muscle Training In Type 2 Diabetes With Inspiratory Muscle Weakness’

“Patients with type 2 diabetes mellitus may present weakness of the inspiratory muscles. This study tested the hypothesis that inspiratory muscle training (IMT) could improve inspiratory muscle strength, pulmonary function, functional capacity, and autonomic modulation in patients with type 2 diabetes and weakness of the inspiratory muscles.”


“Patients with type 2 diabetes may frequently present inspiratory muscle weakness. In these patients, IMT improves inspiratory muscle function with no consequences in functional capacity or autonomic modulation.”

Read Inspiratory muscle training in type 2 diabetes with inspiratory muscle weakness >