Viewing Study NCT06942533


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Study NCT ID: NCT06942533
Status: RECRUITING
Last Update Posted: 2025-12-01
First Post: 2025-04-09
Is NOT Gene Therapy: False
Has Adverse Events: False

Brief Title: Effect of Visual Feedback From the SpiroGym Mobile Application
Sponsor: General University Hospital, Prague
Organization:

Study Overview

Official Title: The Effect of Visual Feedback From the SpiroGym Mobile Application on Expiratory Muscle Strength Training Performance in Patients With Parkinson's Disease
Status: RECRUITING
Status Verified Date: 2025-11
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: EXPARK
Brief Summary: The previous pilot study showed that two weeks of intensive expiratory muscle strength training (EMST) with SpiroGym was sufficient to significantly improve voluntary peak cough flow (PCF). The improvement was quantitatively comparable to that reported in other intensive EMST studies of longer duration. To explain this rapid improvement, we considered the potential contribution of SpiroGym's visual feedback. We assumed that real-time visual feedback increased training effort compared with conventional EMST performed without immediate feedback.

The aim of this study is to evaluate the effect of visual feedback provided by the SpiroGym mobile application on performance during expiratory muscle strength training in patients with Parkinson's disease.
Detailed Description: The study will be conducted using a prospective crossover design. Patients with Parkinson's disease will complete two EMST sessions, each at 75% of maximum expiratory pressure (MEP), separated by a two-week interval. One EMST session will include feedback via the SpiroGym mobile application, while the other will be performed without feedback. The order of these conditions will be randomly assigned.

Primary hypothesis

1. Visual feedback provided by the SpiroGym application during expiratory training will result in greater muscle activation, as measured by surface electromyography (sEMG), compared with training without visual feedback.

Secondary hypotheses
2. Visual feedback during expiratory training will lead to greater expiratory performance, reflected by higher noise intensity recorded by the SpiroGym application, than training without visual feedback.
3. Participants will report lower perceived difficulty and higher motivation to perform expiratory training exercises when visual feedback is provided than when it is absent.

Study Oversight

Has Oversight DMC: False
Is a FDA Regulated Drug?: False
Is a FDA Regulated Device?: False
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: