Effects of Respiratory Muscle Training on Tongue Muscle Function
Effects of Respiratory Muscle Training on Tongue Muscle Function in Healthy Subjects, a Randomized Controlled Trial.
Université Catholique de Louvain
60 participants
Nov 4, 2024
INTERVENTIONAL
Conditions
Summary
This study aims to investigate the effects of respiratory muscle training on tongue muscle function in healthy subjects. We hypothesize that respiratory muscle training can improve strength and endurance of the tongue muscles.
Eligibility
Inclusion Criteria1
- Community ambulant adults between 18 to 65 years old as of testing day; able to understand French or Dutch (depending on the study's site of inclusion); BMI ≥ 18 and ≤ 30 kg/m².
Exclusion Criteria1
- Any diagnosed neuromuscular or cardiorespiratory disease; diagnosed psychiatric or psychological disorders which could affect adherence to or comprehension of instructions; diagnosed eating disorders; previous or ongoing head and neck cancer; diagnosed OSA; presenting a high-risk of sleep-disordered breathing indicated by a NoSAS score of 8 or higher 32 or a STOP-Bang score of 3 or higher 33,34; resting heart rate (HR) \> 100 beats per minute (bpm) or \< 50 bpm; resting systolic blood pressure (SBP) \> 140 or \< 90 mmHg, diastolic blood pressure (DBP) \> 90 or \< 50 mmHg; oxygen saturation (SpO2) \< 94% at rest on room air. Individuals with abnormal lung function, i.e., forced expiratory volume in 1 second (FEV1) ≤ 80%, forced vital capacity (FVC) ≤ 80%, and FEV1/FVC ≤ 70%, will also be excluded.
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Interventions
Description: A pressure threshold loading device will be used: the POWERbreathe Medic (load range 10-90 cmH2O). Participants will be instructed to exhale passively during normal tidal breathing through the training device (until functional residual capacity) and to perform deep inspirations against the external load. The first week, the resistance will be fixed at 30% of the baseline measured maximal inspiratory pressure (MIP). Participants will be instructed to increase the resistance by 10% of the baseline set resistance each week.
A pressure threshold loading device will be used: the POWERbreathe Ex1 EMT Medic (load range 10-90 cmH2O) or POWERbreathe Ex1 EMT MR (load range 35-175 cmH2O) depending on their baseline MEP measurement. Participants will be instructed to inhale quietly during normal tidal breathing through the training device and to perform rapid and deep exhalation against the external load. The first week, the resistance will be fixed at 30% of the baseline measured MEP. Participants will be instructed to increase the resistance by 10% of the baseline set resistance each week.
A pressure threshold loading device will be used: the POWERbreathe Ex1 EMT Medic or MR, but with the resistance mechanism inside removed and replaced by a plastic ball. The same instructions will be given as for the EMT group, except that there will be no or minimal resistance (less than 6 cmH2O). There will be no change in resistance over the weeks.
Locations(3)
View Full Details on ClinicalTrials.gov
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NCT06627283