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The Effects of Individualized Respiratory Exercise Device in Healthy Individuals

Development of an Individualized Respiratory Exercise Device Originated in Turkey and Investigation of Its Clinical Effects on Healthy Individuals

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06245928
Enrollment
40
Registered
2024-02-07
Start date
2024-01-01
Completion date
2025-05-01
Last updated
2025-12-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Keywords

Respiratory Exercise Device, Biomedical Device, Pulmonary Function, Respiratory Muscle Strength, Functional Capacity, Respiratory Muscle Training

Brief summary

Respiratory exercise devices can be grouped as respiratory muscle training (RMT) devices and incentive spirometers (IS). IS can improve pulmonary ventilation using visual feedback but cannot increase respiratory muscle strength. RMT devices strengthen the respiratory muscles by their resistance mechanisms but they cannot provide visual feedback. It has been stated that RMT increases exercise performance in healthy individuals. RMT devices usually allow only one of inspiratory muscle training or expiratory muscle training. The need to acquire 2 devices for combined training increases the cost. It is seen that the RMT devices available in Turkey do not allow combined training and a significant part of them do not offer sufficient loading range. The aims of the project are; to develop a multifunctional individualized respiratory exercise device originating in Turkey, and to analyze the clinical effects of an individualized respiratory exercise device on pulmonary function, respiratory muscle strength, and functional capacity in healthy individuals. The device to be developed in this project will be the first multifunctional respiratory exercise device originated in Turkey. The device will have the clinical features of IS and RMT devices and can be individualized according to the desired purpose. With the same device, the individual will be able to both improve the ventilation of the lungs like the IS and strengthen the respiratory muscles in the direction of inspiration and/or expiration with wide loading intervals. A total of 46 healthy individuals will be included in the study. The healthy individuals included in the study will be randomly divided into two groups experimental group (n=23) and control group (n=23). The individuals in the experimental group will be trained with an individualized respiratory exercise device for 5 days a week for 8 weeks. The individuals in the control group will be trained with Threshold® IMT + Threshold™ PEP training for 5 days a week for 8 weeks. In both groups, pulmonary function, respiratory muscle strength, and functional capacity will be assessed before and after the 8 weeks of training.

Interventions

DEVICEIndividualized Respiratory Exercise Device

The Individualized Respiratory Exercise device will include both inspiratory muscle training, expiratory muscle training, and intensive spirometer features.

DEVICEThreshold® IMT + Threshold™ PEP

The Threshold® IMT device allows inspiratory muscle training and the Threshold™ PEP device allows expiratory muscle training.

Sponsors

The Scientific and Technological Research Council of Turkey
CollaboratorOTHER
Biruni University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Being between the ages of 18-65 * Answering No to the general health questions of the Exercise Readiness Questionnaire for all

Exclusion criteria

* Being an amateur or professional athlete who does sports-specific training at least 2 times a week * Having a chronic disease * Having history of spontaneous or trauma-related pneumothorax * Having pathologies related to the middle ear (such as tympanic membrane rupture, otitis) * Receiving routine medical treatment other than vitamin supplements for any reason

Design outcomes

Primary

MeasureTime frameDescription
Spiropalm 6-minute Walk Test8 weeksThe 6-minute Walk Test will be performed with Spiropalm 6 DYT (Cosmed, Spiropalm 6MWT) according to ATS guidelines. Walking distance, minute ventilation, respiratory rate, inspiratory capacity and breathing reserve will be recorded.
Maximal Inspiratory Pressure (MIP)8 weeksMaximal Inspiratory Pressure will be measured in accordance with ATS/ERS criteria using an electronic, mobile, (MicroRPM, Micro Medical; UK) intraoral pressure measuring device. Three measurements will be repeated for each maneuver and the highest value recorded as cmH2O.
Maximal Expiratory Pressure (MEP)8 weeksMaximal Expiratory Pressure will be measured in accordance with ATS/ERS criteria using an electronic, mobile, (MicroRPM, Micro Medical; UK) intraoral pressure measuring device. Three measurements will be repeated for each maneuver and the highest value recorded as cmH2O.
Forced Vital Capacity (FVC)8 weeksForced Vital Capacity will be measured before six-minute walk test according to the guideline of ERS.
Forced Expiratory Volume in 1 second (FEV1)8 weeksForced Expiratory Volume in 1 second will be measured before six-minute walk test according to the guideline of ERS.
Peak Expiratory Flow (PEF)8 weeksPeak Expiratory Flow will be measured before six-minute walk test according to the guideline of ERS.
Forced Expiratory Flow 25-75% (FEF25-75)8 weeksForced Expiratory Flow 25-75% will be measured before six-minute walk test according to the guideline of ERS.

Secondary

MeasureTime frameDescription
Convenience of Device Use8 weeksA 5-point Likert scale will be used to question the convenience of use of the devices used. Scoring will be determined as 1- very difficult to use, 5- very easy to use.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026