This study is looking at a new way to measure how well your diaphragm muscle (the main muscle used for breathing) is working. Researchers are using a special ultrasound called Shear-wave elastography to look at diaphragm muscle activity. They want to see how this measurement relates to other ways of testing breathing, like measuring pressure in your diaphragm and stimulating a nerve in your neck. This study is for healthy adult volunteers, both men and women, who are not pregnant and don't have lung conditions like COPD or asthma that need regular treatment. The main goal is to measure shear wave speed after 3 hours. The current recruitment status is unclear.

Study design

This is an interventional study with a planned enrollment of 24 healthy adult volunteers.

What's involved

You would undergo various respiratory muscle tests, including breathing efforts and nerve stimulation, along with Shear-wave elastography.

Compensation

Not stated in the trial record.

Follow-up

The primary endpoint is measured at 3 hours, suggesting a short follow-up period.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.