The Use of Visual Feedback in Airway Clearance

The Immediate Effect of Resistive Expiration Via Volumetric Incentive Spirometer on Lung Function in Patients With Cystic Fibrosis.

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01546779

Enrollment

Registered

2012-03-07

Start date

2008-12-31

Completion date

2009-07-31

Last updated

2012-03-07

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

Conditions

Cystic Fibrosis

Brief summary

Cystic Fibrosis (CF) patients perform airway clearance incorporating various breathing strategies, to clear secretions from their lungs. Hand held devices may aid mucus expectoration, and also motivate the patient to manage by themselves. Our aims was to study if resistive expiration through volumetric incentive spirometer (VISex) can improve lung function in the short term in Cystic Fibrosis (CF) patients.

Interventions

DEVICETri-Gym

40 CF patients performed airway clearance using the VISex, by exhaling against chosen resistance being motivated by visual feedback of raising colored balls. The level of resistance was set to cause longest expiration/volume, until mucus was transported from the peripheral to the central airways, to be expectorated by the subsequent cough.

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

5 Years to 65 Years

Healthy volunteers

Inclusion criteria

* cystic fibrosis patients

Exclusion criteria

* i.v. antibiotic therapy during the experiment day

Design outcomes

Primary

Measure	Time frame	Description
lung function	fifteen minutes after intervention	Forced expiratory maneuvers were measured before and 15 minutes after intervention.

Countries

Israel

Outcome results

None listed

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