Inspiratory Muscle Endurance of Adults

Study Overview
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Brief Summary
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The aim of this study is to determine the reference value ranges for healthy adults of the incremental threshold load test, which evaluates respiratory muscle endurance.

Detailed Description
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Since respiratory muscles are used in daily life at the submaximal level, evaluation of their endurance is more meaningful functionally. In addition, evaluation of endurance with respiratory muscle strength is effective in determining respiratory muscle dysfunction. Failure to routinely evaluate respiratory muscle endurance, which is one of the main components of respiratory muscle function, may lead to failure to identify respiratory muscle dysfunction in early stage respiratory patients who have not yet developed muscle strength loss. However, normal value ranges have not been determined for the respiratory muscle endurance test. Determining the normal value ranges for this test will help determine muscle fatigue and investigate the physiological course in respiratory diseases.

Official Title
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Determination of Respiratory Muscle Endurance in Healthy Adult Individuals

Conditions
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Healthy Volunteers

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Being between the ages of 18-35 Not having any disease Not exercising regularly Not smoking Exclusion Criteria: Having a respiratory disease Have heart disease Have a neuromuscular disease Have Scoliosis Having had thoracic surgery Having experienced the respiratory muscle endurance protocol before

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 35 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Incremental threshold loading test. | A measure of endurance of inspiratory muscles. | 15 minute | 
| Maximal inspiratory pressure | A measure of the strength of inspiratory muscles | 20 minute | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pulmonary function test - Forced expiratory volume in 1 second (FEV1) | The forced expiratory volume in 1 second (FEV1) is the volume of air (in liters) exhaled in the first second during forced exhalation after maximal inspiration. It is lung function test that are measured during spirometry. This pulmonary function test measurements were made to confirm that the respiratory function parameters of the participants were within the normal range. . | 5 minute | 
| Pulmonary function test - Forced vital capacity (FVC) | Forced vital capacity (FVC) is lung function test that are measured during spirometry. This pulmonary function test measurement is applied to confirm that the respiratory function parameters of the participants were within the normal range. | 5 minute | 
| Maximal voluntary ventilation (MVV) | It is a test that measures inspiratory endurance. MVV is the largest amount of air that a person can inhale and then exhale during a 12- to 15-s interval with maximal voluntary effort. It is determined by spirometry measurement. | 5 minute | 
| International Physical Activity Questionnaire - Short Form | This questionnaire assesses the types of intensity of physical activity and sitting time that people do as part of their daily lives are considered to estimate total physical activity in the metabolic equivalent of task (MET)-minute/week and time spent sitting. | 5 minute |