NCT06877338

Inspiratory and Trunk Muscle Activity During IMT on Stable and Unstable Surfaces in Stroke Patients

Inspiratory and Trunk Muscle Activity During Inspiratory Muscle Training on Stable and Unstable Surfaces in People After Stroke

• Status: Not Yet Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 24 (estimated)
• Sponsor: Hong Kong Metropolitan University · Academic / Other
• Sex: All
• Age: 40 Years – 80 Years
• Healthy volunteers: —

Summary

This study aims to investigate the differences in muscle recruitment of the diaphragm (assessed using ultrasound), the sternocleidomastoid (SCM) and trunk muscles (both measured via surface electromyography (sEMG)), during loaded breathing training performed on both stable and unstable surfaces. The goal is to understand the interaction between the inspiratory and trunk muscles during Inspiratory muscle training (IMT) across these two surface conditions.

Conditions

• Stroke
• Inspiratory Muscle Training
• Diaphragm
• Sternocleidomastoid Muscles
• Trunk Muscle Activity

Interventions

Type	Name	Description
OTHER	Loaded breathing on stable and unstable surfaces	Participants will be instructed to perform 10 loaded breaths via a threshold inspiratory load device on both a stable surface (sitting on a chair, Protocol 1) and an unstable surface (sitting on a soft pad, Protocol 2) in random order. The inspiratory load/resistance will be set at 50% of the maximum inspiratory pressure (MIP).

Timeline

• Start date: 2025-03-15
• Primary completion: 2025-08-15
• Completion: 2025-10-15
• First posted: 2025-03-14
• Last updated: 2025-03-14