The Effects of Inspiratory Pressures on Diaphragmatic Contraction in People After Stroke
- Conditions
- Stroke
- Interventions
- Diagnostic Test: Various intensities of inspiratory muscle training
- Registration Number
- NCT06267768
- Lead Sponsor
- Hong Kong Metropolitan University
- Brief Summary
This is a cross-sectional study to determine the optimal inspiratory muscle training (IMT) intensity for stroke survivors. Participants will breathe through a pressure threshold inspiratory loading device with varying loads in random order. Each IMT intensity protocol consists of 10 breaths. During the test, accessory inspiratory muscle activity will be measured with surface electromyography (sEMG) and diaphragm thickness will be used to assessed with ultrasonography. Repeated-measures ANOVA will be used for statistical analysis to determine the most effective training intensity for future study.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 36
Not provided
Not provided
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description Stroke participants Various intensities of inspiratory muscle training People diagnosed with stroke and meeting all inclusion criteria will be included in this study. Healthy participants Various intensities of inspiratory muscle training Healthy adults meeting all inclusion criteria will be included in this study.
- Primary Outcome Measures
Name Time Method Diaphragmatic thickening fraction Data will be measured at baseline and at the end of each inspiratory muscle training intensity protocol; Diaphragmatic thickening fraction is determined by "(thickness of the diaphragm at end inspiratory - thickness at end expiratory)/thickness at end expiratory". Diaphragmatic thickness will be measured by ultrasonography.
- Secondary Outcome Measures
Name Time Method Perceived Exertion Borg scale Data will be measured at the end of each inspiratory muscle training intensity protocol; This is a vertical scale quantified from 0 to 10, where 0 represents no symptoms, and 10 represents the maximum symptoms. The Borg score provides an individual measurement of the exercise intensity.
Muscle activation of the sternocleidomastoid muscle Data will be measured at baseline and at the end of each inspiratory muscle training intensity protocol; Surface electromyography will be used to measure accessory inspiratory muscle (sternocleidomastoid muscles) activity during each inspiratory muscle training intensity protocol.
Trial Locations
- Locations (1)
Shenzhen Second People's Hospital
🇨🇳Shenzhen, None Selected, China