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Effect of Head and Neck Positioning on Lung Sliding in Healthy Volunteers

NCT07351201 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 31

Last updated 2026-03-02

No results posted yet for this study

Summary

The goal of this clinical study is to learn how different head-of-bed positions affect lung movement during breathing in healthy adults. Researchers want to understand whether raising the head of the bed changes how the lungs move, which may help guide patient positioning in emergency and intensive care settings.

The main questions this study aims to answer are:

Does lung movement change when the head of the bed is positioned at zero, twenty, or forty degrees?

Are there differences in lung movement between the right and left lungs?

Are there differences between the upper (apical) and lower (basal) parts of the lungs?

Participants will be healthy adult volunteers between eighteen and sixty years of age. Each participant will lie on a bed in three different positions: flat, with the head raised to twenty degrees, and with the head raised to forty degrees.

During each position, researchers will use bedside lung ultrasound, a painless and non-invasive imaging method, to measure lung movement at four areas of the chest. No medications, injections, or invasive procedures will be used.

This study may help health care providers better understand how body position affects breathing and support safer and more effective positioning of patients with breathing problems.

Conditions

  • Healthy

Interventions

PROCEDURE

Head-of-Bed Elevation

Controlled positioning of the participant with the head of the bed at zero, twenty, and forty degrees. At each position, lung sliding movement will be assessed using bedside lung ultrasound with a high-frequency linear probe.

Sponsors & Collaborators

  • Ankara Etlik City Hospital

    lead OTHER_GOV

Principal Investigators

  • İLKER ŞİRİN · Ankara Etlik City Hospital

Study Design

Allocation
NA
Purpose
SUPPORTIVE_CARE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-01-20
Primary Completion
2026-02-20
Completion
2026-02-20

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07351201 on ClinicalTrials.gov