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Inspiratory Muscle Training in Children With Cerebral Palsy: Effects on Respiratory and Motor Functions

Inspiratory Muscle Training in Children With Cerebral Palsy: Effects on Respiratory and Motor Functions

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07041593
Enrollment
20
Registered
2025-06-27
Start date
2025-05-15
Completion date
2025-12-22
Last updated
2026-05-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Balance, Cerebral Palsy, Respiratory Function, Swallowing, Upper Extremity Function

Keywords

breathing exercises, cerebral palsy, maximal respiratory pressures, postural balance, spirometry

Brief summary

This study investigates the effect of inspiratory muscle training on respiratory parameters, trunk control, upper extremity function and swallowing in patients with cerebral palsy aged 5-18 years. The results of the study aim to provide a clinical perspective for clinicians working with patients diagnosed with cerebral palsy between the ages of 5-18 years and to contribute to the literature.

Detailed description

Cerebral palsy (CP) is a neurodevelopmental disorder characterised by permanent motor dysfunctions that develop in the prenatal, perinatal or postnatal period as a result of nonprogressive central nervous system involvement. CP involves not only the musculoskeletal system but also many different systems such as respiratory, digestive, sensory and cognitive systems, leading to a complex involvement. The complex involvement associated with the nature of CP necessitates a holistic and multidisciplinary approach in terms of treatment. In addition to common motor dysfunctions in the clinical picture, common comorbidities include epilepsy, swallowing disorders (dysphagia), gastrointestinal problems (e.g. constipation and reflux), nutritional deficiencies, behavioural problems, sensory disorders and respiratory system complications. In individuals with CP, musculoskeletal system involvement results in significant comorbidities in the respiratory system. Especially weakness of respiratory muscles, inadequate airway clearance, increased risk of aspiration and recurrent respiratory tract infections are among the important complications reported in individuals with CP. This situation is more prominent especially for patients at levels IV and V according to the Gross Motor Function Classification System (GMFCS) and significantly negatively affects the quality of life of both the individual with CP and their caregivers. Another important dysfunction in patients with CP is dysphagia, which develops mostly due to impaired motor control and coordination in the oral and pharyngeal phases. Oropharyngeal dysphagia (OPD) is quite common in children with CP and may lead to serious complications such as aspiration, malnutrition, growth retardation, gastroesophageal reflux disease and pneumonia. This effect, which can be seen in all phases of swallowing disorders, causes a decrease in muscle mass and immune functions by reducing energy intake, which increases susceptibility to infection. In the field of pulmonary rehabilitation, individualised exercise programmes targeting respiratory muscles have recently attracted considerable attention, and studies using inspiratory muscle training (IMT) and feedback devices have provided significant improvements in maximum inspiratory and expiratory pressures. Studies have reported significant increases in daily living activities and quality of life of individuals after respiratory muscle training. In line with the literature, the aim of this study was to investigate the effect of respiratory muscle training on respiratory muscle strength, respiratory and swallowing functions of individuals diagnosed with CP. In addition to the parameters mentioned in the study, the effectiveness of respiratory muscle training on trunk control and upper extremity functions in individuals with CP will also be questioned.

Interventions

OTHERInspiratory muscle training and standard neurodevelopmental physiotherapy (SNP)

Inspiratory muscle training (IMT) in addition to the standard neurodevelopmental physiotherapy (SNP) program. The initial training load was set at 30% of MIP. MIP was remeasured weekly, and the training load was updated according to 30% of the newly obtained value. Resistance adjustments were performed weekly by the physiotherapist. The IMT program was performed for eight weeks, five days per week, in two 15-minute sessions per day, for a total of 30 minutes daily. Two sessions per week were supervised by a physiotherapist, while the remaining sessions were performed as a home-based program. Participants were asked to record their home exercise sessions in a weekly follow-up form prepared by the researchers and to bring the form to the first session of each week for compliance monitoring.

OTHERStandard neurodevelopmental physiotherapy (SNP)

Participants in the control group will undergo a standard neurodevelopmental physiotherapy (SNP) for 8 weeks, consisting of two 40-minute sessions per week under the supervision of a physiotherapist.

Sponsors

Sadık Emre ÇELEBİ
Lead SponsorOTHER
Istanbul University - Cerrahpasa
CollaboratorOTHER
Medipol University
CollaboratorOTHER
Okan University
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
5 Years to 18 Years
Healthy volunteers
No

Inclusion criteria

* Participants aged 5-18 years * Diagnosed with cerebral palsy (CP) by a paediatric neurologist * Classified as Gross Motor Function Classification System (GMFCS) levels I-II * Possessing communication skills sufficient to understand verbal or written language and follow assessment and intervention instructions

Exclusion criteria

* History of lung infection within the previous month * Haemodynamic instability (heart rate \>150 beats/min, systolic blood pressure \>140 mmHg, or diastolic blood pressure \>90 mmHg) * Orthopaedic surgery or botulinum toxin injection within the previous six months * Severe chest infection or an active respiratory condition that could limit participation in the study * Mental or auditory dysfunction that could interfere with participation in the assessment or intervention procedures

Design outcomes

Primary

MeasureTime frameDescription
Maximum inspiratory pressure assessmentThe first assessment will be conducted during the first week. The final assessment will be conducted after the 8-week intervention.For the measurement of maximum inspiratory pressure (MIP), participants will be asked to first exhale against a valve that closes the airway, and then perform maximum inspiration. The highest MIP value will be selected for use in analyses.

Secondary

MeasureTime frameDescription
Maximum expiratory pressure assessmentThe first assessment will be conducted during the first week. The final assessment will be conducted after the 8-week intervention.In the maximum expiratory pressure (MEP) measurement, subjects will first inhale and then exhale as hard as they can against the valve. The highest MEP value will be selected for use in the analyses.
Assessment of upper extremity functionThe first assessment will be conducted during the first week. The final assessment will be conducted after the 8-week intervention.The AbilHand-Kids questionnaire will be used to assess participants' upper extremity function in daily life. The questionnaire is a 21-item survey that evaluates children's upper extremities bilaterally and assesses their ability to perform common tasks in daily living activities. The maximum score that can be obtained from the questionnaire is 42, and the minimum score is 0. A high score indicates that the individual uses their hand better in daily life compared to those with lower scores. An increase in the score indicates positive development, while a decrease in the score indicates negative development.
Assessment of swallowingThe first assessment will be conducted during the first week. The final assessment will be conducted after the 8-week intervention.The Pediatric Eating Assessment Tool-10 (PEDI-EAT-10) will be used to assess dysphagia. This 10-item scale is scored on a scale of 0-4 for each item. High scores on the scale are considered to indicate a risk of swallowing disorder or severe dysphagia symptoms.
Assessment of trunk controlThe first assessment will be conducted during the first week. The final assessment will be conducted after the 8-week intervention.The Trunk Control Measurement Scale will be used to assess participants' trunk control. This scale assesses trunk control during functional activities. The scale contains a total of 15 items. The total score on the scale ranges from 0 to 58 points, with higher scores indicating better performance.
Forced vital capacity (FVC) massessmentThe first assessment will be conducted during the first week. The final assessment will be conducted after the 8-week intervention.Patients will perform a rapid and complete inhalation maneuver from functional residual capacity to total lung capacity, followed by a continuous and maximal exhalation maneuver lasting at least six seconds. Verbal and non-verbal encouragement will be provided throughout the maneuvers. The test will be terminated once acceptable repeatability is achieved. The results will be recorded in litres.
Forced expiratory volume in one second (FEV1) assessmentThe first assessment will be conducted during the first week. The final assessment will be conducted after the 8-week intervention.Patients will perform a rapid and complete inhalation maneuver from functional residual capacity to total lung capacity, followed by a continuous and maximal exhalation maneuver lasting at least six seconds. Verbal and non-verbal encouragement will be provided throughout the maneuvers. The test will be terminated once acceptable repeatability is achieved. The results will be recorded in litres.
FEV1/FVC ratioThe first assessment will be conducted during the first week. The final assessment will be conducted after the 8-week intervention.FVC and FEV1 results will be compared and expressed as percentages.
Forced expiratory flow 25-75% (FEF25-75) assessmentThe first assessment will be conducted during the first week. The final assessment will be conducted after the 8-week intervention.Patients will perform a rapid and complete inhalation maneuver from functional residual capacity to total lung capacity, followed by a continuous and maximal exhalation maneuver lasting at least six seconds. Verbal and non-verbal encouragement will be provided throughout the maneuvers. The test will be terminated once acceptable repeatability is achieved. The results will be expressed in litres per second.
Peak expiratory flow (PEF) assessmentThe first assessment will be conducted during the first week. The final assessment will be conducted after the 8-week intervention.Patients will perform a rapid and complete inhalation maneuver from functional residual capacity to total lung capacity, followed by a continuous and maximal exhalation maneuver lasting at least six seconds. Verbal and non-verbal encouragement will be provided throughout the maneuvers. The test will be terminated once acceptable repeatability is achieved. The results will be expressed in litres per minute.

Countries

Turkey (Türkiye)

Contacts

STUDY_CHAIRSadık Emre Çelebi, MSc, PhD(c), Physiotherapist

Istanbul University-Cerrahpaşa, Cardiology Institute, Department of Cardiology

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 12, 2026