Inspiratory Muscle Endurance of Adults

Determination of Respiratory Muscle Endurance in Healthy Adult Individuals

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.

Study Overview

• Status: Completed
• Conditions: Healthy Volunteers

Detailed Description

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.

• Study Type: Observational
• Enrollment (Actual): 112

Contacts and Locations

Study Locations

• Turkey
  • Kutahya, Turkey, 43100
    • Kütahya Health Sciences University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 35 years (Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Healthy volunteers between the ages of 18-35

Description

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

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Cross-Sectional

What is the study measuring?

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

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Anthropometric assessment	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.	5 minute

Collaborators and Investigators

• Sponsor: Kutahya Health Sciences University
• Investigators: Principal Investigator: Selda Gokcen, Kütahya Health Sciences University; Study Director: Ozgen Aras, Kütahya Health Sciences University

Study record dates

Study Major Dates

• Study Start (Actual): September 1, 2020
• Primary Completion (Actual): September 30, 2022
• Study Completion (Actual): January 18, 2023

Study Registration Dates

• First Submitted: January 18, 2022
• First Submitted That Met QC Criteria: February 2, 2022
• First Posted (Actual): February 14, 2022

Study Record Updates

• Last Update Posted (Estimate): March 3, 2023
• Last Update Submitted That Met QC Criteria: March 2, 2023
• Last Verified: March 1, 2023

More Information

Terms related to this study

• Other Study ID Numbers: 100

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No