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Completed

NCT Number: NCT05237427

Inspiratory Muscle Endurance of Adults

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.

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Key information

Conditions

Healthy Volunteers

Age range

18 year–35 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Kutahya Health Sciences University

Kütahya, 43100, Turkey (Türkiye)

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Primary outcomes

  1. Incremental threshold loading test.

    Time frame: 15 minute

    A measure of endurance of inspiratory muscles.

  2. Maximal inspiratory pressure

    Time frame: 20 minute

    A measure of the strength of inspiratory muscles

Secondary outcomes

  1. Pulmonary function test - Forced expiratory volume in 1 second (FEV1)

    Time frame: 5 minute

    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. .

  2. Pulmonary function test - Forced vital capacity (FVC)

    Time frame: 5 minute

    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.

  3. Maximal voluntary ventilation (MVV)

    Time frame: 5 minute

    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.

  4. International Physical Activity Questionnaire - Short Form

    Time frame: 5 minute

    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.

Other outcomes

  1. Anthropometric assessment

    Time frame: 5 minute

    Body weight was assessed with a digital scale in the orthostatic position, without shoes, with minimal clothing. Height was measured with the feet parallel and adjacent to each other, the arms extended by the body, and the head in a neutral position. Correlations between inspiratory muscle endurance of the incremental threshold loading protocol and anthropometric characteristics will be shown.

Sponsors and collaborators

Lead sponsor

Kutahya Health Sciences University

Other

Registry information

Official study title

Determination of Respiratory Muscle Endurance in Healthy Adult Individuals

Important dates

Study start
2020
Primary completion
2022
Study completion
2023
First posted
Feb 14, 2022
Registry last updated
Mar 3, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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