Pulmonary Function, Respiratory Function, Respiratory Muscle Strength
Conditions
Keywords
Incentive Spirometry, Digital Incentive Spirometry, Respiratory Training, Pulmonary Function, Healthy Adults, TryBreath, Mobile Health, Telemonitoring
Brief summary
This prospective single-group pre-post study evaluated whether digital incentive spirometry training using the TryBreath system could improve pulmonary function, respiratory muscle strength, exercise capacity, and symptom scores in healthy adults. Participants completed a 3-week training period with app-recorded adherence and were assessed before and after the intervention.
Detailed description
This prospective single-group pre-post study investigated the effects of digital incentive spirometry training in healthy adults. Participants were recruited at Taipei Medical University and received training using the TryBreath digital incentive spirometry system, which integrates an incentive spirometer with infrared sensing, ultrasonic wireless data transmission, and a mobile application for real-time feedback and adherence tracking. Participants completed a 3-week intervention period. The target training dose was at least 30 sustained inspirations per day, and at least 10 compliant training days were required for protocol adherence. Pulmonary function, respiratory muscle strength, exercise capacity, and symptom scores were assessed before and after the intervention. Outcome measures included forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), peak expiratory flow (PEF), maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), 2-minute step test performance, Borg breathlessness score, and numerical rating scale (NRS) muscle discomfort score.
Interventions
DEVICETryBreath Digital Incentive Spirometry System
A digital incentive spirometer integrated with infrared sensing and ultrasonic wireless data transmission, connected to a mobile application that records inspiratory training sessions and provides real-time feedback.
Sponsors
Taipei Medical University
National Science and Technology Council, Taiwan
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE
Intervention model description
All participants received the same digital incentive spirometry intervention and were evaluated before and after the intervention.
Eligibility
Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
* Healthy adults aged 18 to 45 years * FEV1/FVC greater than 70% on pulmonary function testing * Not currently participating in another research study * Able and willing to provide informed consent
Exclusion criteria
* EV1/FVC less than 70% on pulmonary function testing * History of thoracic or pulmonary disease, including pneumothorax, lung cancer, or prior thoracic surgery * Acute exacerbation of asthma, chronic bronchitis, or chronic obstructive pulmonary disease within the previous 3 months * Unable to comply with study procedures
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline in forced expiratory volume in 1 second (FEV1) | Baseline and post-intervention at 3 weeks | FEV1 measured before and after the intervention. |
| Change from baseline in Forced Vital Capacity (FVC) | Baseline and post-intervention at 3 weeks | FVC measured before and after the intervention. |
| Change from baseline in Peak Expiratory Flow (PEF) | Baseline and post-intervention at 3 weeks | PEF measured before and after the intervention. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline in Maximal Inspiratory Pressure (MIP) | Baseline and post-intervention at 3 weeks | MIP measured before and after the intervention. |
| Change from baseline in Maximal Expiratory Pressure (MEP) | Baseline and post-intervention at 3 weeks | MEP measured before and after the intervention. |
| Change from baseline in 2-Minute Step Test Performance | Baseline and post-intervention at 3 weeks | Difference in 2-Minute Step Test Performance between baseline and post-intervention assessment. |
| Change from baseline in Borg Dyspnea Scale score. | Baseline and post-intervention at 3 weeks | Difference in Borg score between baseline and post-intervention assessment. The Borg Dyspnea Scale ranges from 0 to 10, where 0 indicates no breathlessness and 10 indicates maximal breathlessness. Higher scores indicate worse breathlessness. |
| Change from baseline in Numeric Rating Scale (NRS) for muscle discomfort. | Baseline and post-intervention at 3 weeks | Difference in NRS score between baseline and post-intervention assessment. The NRS ranges from 0 to 10, where 0 indicates no discomfort and 10 indicates worst possible discomfort. Higher scores indicate greater muscle discomfort. |
Countries
Taiwan
Outcome results
None listed