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| Name | Class |
|---|---|
| Sygekassernes Helsefond | OTHER |
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The objective of this study is to investigate i) the effect of 3 weeks IMT to adults post-stroke to maximal inspiratory pressure (MIP) and ii) the effects of 3 weeks IMT to the degree of dependency in activities of daily living, endurance in gait, fatigue, voice volume, phonation endurance, and expiratory function.
Methods/Design: Randomised controlled trial (RCT) comparing IMT to conventional neurorehabilitation (usual practise). 80 patients, with reduced maximal inspiration pressure (MIP) hospitalized at a specialized neurorehabilitation hospital in Denmark will be included.
Background: Stroke results in varying disabilities physical, cognitive, emotional and/or social both in short term and long term. Motor impairments are significantly persistent consequences post-stroke among these are decreased respiratory muscle function, decreased ability to expand thorax and postural dysfunction. These deficits influence the patient's ability in daily activities, fatigue, endurance and quality of life. Inspiratory muscle training (IMT) is training to improve the strength and endurance of diaphragm and the external intercostal muscles. The objective of this study is to investigate i) the effect of 3 weeks IMT to adults post-stroke to maximal inspiratory pressure (MIP) and ii) the effects of 3 weeks IMT to the degree of dependency in activities of daily living, endurance in gait, fatigue, voice volume, phonation endurance, and expiratory function.
Methods/Design: Randomised controlled trial (RCT) comparing IMT to conventional neurorehabilitation (usual practise). 80 patients, with reduced maximal inspiration pressure (MIP) hospitalized at a specialized neurorehabilitation hospital in Denmark will be included. The intervention group will add-on IMT sessions exercising at 30 % of MIP. Patients in the intervention group perform 2 sessions a day (One session of IMT with IMT threshold flute consists of 2 times 15 inspirations in normal breathing rhythm (5-10 min)), 7 days a week for 3 weeks. Training can be with or without supervision of physiotherapist.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Intervention group | Experimental |
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| Control group | Active Comparator | Conventional neurorehabilitation |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Inspiratory muscle training (IMT) | Other | IMT and conventional neurorehabilitation - treatment as usual. The intervention group will add-on IMT sessions exercising at 30 % of MIP. MIP is measured by instructing the patient to perform five forceful inspirations against an occluded mouthpiece (Power Breath). The best score is multiplied by 0.3 to determine the resistance. IMT is performed with IMT Threshold flute with the calculated resistance. During the measurement with Power Breath the patient sits straight up and uses nose clip. The patient can receive help to hold the Power Breath if necessary. One session of IMT with IMT threshold flute consists of 2 times 15 inspirations in normal breathing rhythm (5-10 min). Patients in the intervention group perform 2 sessions a day (morning and evening), training is performed prior to a meal, 7 days a week for 3 weeks. |
| Measure | Description | Time Frame |
|---|---|---|
| Maximal inspiratory pressure (MIP) | Change of MIP assess with the Power Breath. This is an objective measurement to describe the inspiratory capacity. Age specific | Assessed 0-4 days before intervention, 0-4 days after ended intervention assessment and 3 months after ended intervention |
| Measure | Description | Time Frame |
|---|---|---|
| Functional Independence Measure (FIM) - both total score ( range from 18 to 126, with higher scores indicating more independence) and motor sub score (max 91) | to assess the degree of changed dependency in daily activities | Assessed 0-4 days before intervention, 0-4 days after ended intervention assessment and 3 months after ended intervention |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Hanne Pallesen, Post Doc | Contact | 004523821365 | hannpall@rm.dk | |
| Simon S Kjeldsen, PhD student | Contact | simokjel@rm.dk |
| Name | Affiliation | Role |
|---|---|---|
| Jørgen F Nielsen, Professor | Hammel Neurorehabilitation and Research Centre, University of Aarhus, Hammel, Denmark | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Regional Hospital Hammel Neurocenter | Recruiting | Hammel | 8450 | Denmark |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 34454573 | Derived | Sorensen SL, Kjeldsen SS, Mortensen SS, Hansen UT, Hansen D, Pedersen AR, Pallesen H. "More air-better performance-faster recovery": study protocol for randomised controlled trial of the effect of post-stroke inspiratory muscle training for adults. Trials. 2021 Aug 28;22(1):575. doi: 10.1186/s13063-021-05551-8. |
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| Type | Date | Date Unknown |
|---|---|---|
| Release | Sep 17, 2025 | |
| Reset | Oct 9, 2025 |
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| Release Date | Unrelease Date | Unrelease Date Unknown | Reset Date | MCP Release Number |
|---|---|---|---|---|
| Sep 17, 2025 | Oct 9, 2025 |
| ID | Term |
|---|---|
| D012131 | Respiratory Insufficiency |
| D020521 | Stroke |
| D005221 | Fatigue |
| ID | Term |
|---|---|
| D012120 | Respiration Disorders |
| D012140 | Respiratory Tract Diseases |
| D002561 | Cerebrovascular Disorders |
| D001927 | Brain Diseases |
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External assessor unknown to the participants of the intervention group and control group
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| Fatigue Severity Scale (FSS) | to measure change of fatigue (1-63) higher scores indicating more fatigue affected. | Assessed 0-4 days before intervention, 0-4 days after ended intervention assessment and 3 months after ended intervention |
| 6-minutes walking test | to measure change of endurance | Assessed 0-4 days before intervention, 0-4 days after ended intervention assessment and 3 months after ended intervention |
| Voice volume | to measure change of voice volume by recording of an a-sound with the App Voice Analyst and to measure Phonation endurance (how long the a-sound last) | Assessed 0-4 days before intervention, 0-4 days after ended intervention assessment and 3 months after ended intervention |
| Expiratory function | To measure change of Peak expiratory flow (PEF), Forced expiratory volume in 1 second (FEV1), Forced vital capacity (FVC) and FEV1/FVC ratio will be assessed with a peak flow meter (Spirometry device Micro 6300) | Assessed 0-4 days before intervention, 0-4 days after ended intervention assessment and 3 months after ended intervention |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |