The Effects of Inspiratory Muscle Training on Endurance Performance in Trained Athletes Under Normoxic and Hypoxic Conditions: A Gender-based Comprehensive Study
NCT ID: NCT06121128
Last Updated: 2023-11-07
Study Results
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Basic Information
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NOT_YET_RECRUITING
NA
48 participants
INTERVENTIONAL
2023-12-01
2024-08-31
Brief Summary
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Intervention lasts 4 weeks, with a frequency of 6 days/week, 2 series of 30 inspirations in the morning and evening.
Resistance based on 60% of the Pressure Maximal Inspiratory (PMI). Progressive increase in resistance every week.
Four laboratory visits: 2 pre-tests and 2 post-tests. Each pre- / post- test will go under normoxic and hypoxic conditions.
Measurements include Pulmonary functions (spirometry test); blood microcirculation (vascular occlusion test); gas exchanges (e.g. VO2max), cardiac parameters, heart rate variability, maximal aerobic power (incremental and time limit test)
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Detailed Description
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Intervention lasts 4 weeks, with a frequency of 6 days/week, 2 series of 30 inspirations in the morning and evening.
Resistance based on 60% of the Pressure Maximal Inspiratory (PMI). Progressive increase in resistance every week.
Four laboratory visits: 2 pre-tests and 2 post-tests. Each pre- / post- test will go under normoxic and hypoxic conditions.
Measurements include Pulmonary functions (spirometry test); blood microcirculation (vascular occlusion test); gas exchanges (e.g. VO2max), cardiac parameters, heart rate variability, maximal aerobic power (incremental and time limit test)
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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Female Control Group (FCON)
female endurance trained athletes between 18 and 44 years old
Normal Breathing
No IMT performed
Female Training Group (FTRAIN)
female endurance trained athletes between 18 and 44 years old
Inspiratory Muscle Training (IMT)
The POWERbreathe™ Plus: an Inspiratory Muscle Training device (IMT) with adjustable resistance.
Intervention lasts 4 weeks, with a frequency of 6 days/week, 2 series of 30 inspirations in the morning and evening.
Resistance based on 60% of the Pressure Maximal Inspiratory (PMI). Progressive increase in resistance every week.
Male Control Group (MCON)
male endurance trained athletes between 18 and 44 years old
Normal Breathing
No IMT performed
Male Training Group (MTRAIN)
male endurance trained athletes between 18 and 44 years old
Inspiratory Muscle Training (IMT)
The POWERbreathe™ Plus: an Inspiratory Muscle Training device (IMT) with adjustable resistance.
Intervention lasts 4 weeks, with a frequency of 6 days/week, 2 series of 30 inspirations in the morning and evening.
Resistance based on 60% of the Pressure Maximal Inspiratory (PMI). Progressive increase in resistance every week.
Interventions
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Inspiratory Muscle Training (IMT)
The POWERbreathe™ Plus: an Inspiratory Muscle Training device (IMT) with adjustable resistance.
Intervention lasts 4 weeks, with a frequency of 6 days/week, 2 series of 30 inspirations in the morning and evening.
Resistance based on 60% of the Pressure Maximal Inspiratory (PMI). Progressive increase in resistance every week.
Normal Breathing
No IMT performed
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* Calcium channel blockers
* Beta-blockers
Two families are known to interfere during spirometry measurements:
* Inhaled beta-agonists
* Inhaled glucocorticoids)
18 Years
44 Years
ALL
Yes
Sponsors
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University of Lausanne
OTHER
Responsible Party
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Gregoire Millet
Prof Ordinaire
Other Identifiers
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2023-01638
Identifier Type: -
Identifier Source: org_study_id
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