ClinicalTrials.Veeva

Menu

Advanced Gravitational Physiology the Lung Under High-G Acceleration

K

King's College London

Status

Completed

Conditions

Respiratory Physiology

Treatments

Other: High G acceleration on a long-arm human centrifuge

Study type

Interventional

Funder types

Other
Industry

Identifiers

Details and patient eligibility

About

This is a study of advanced lung physiology in altered gravitational conditions, consisting of respiratory measurements in healthy volunteers during high G acceleration on a long-arm human centrifuge.

Full description

The lung is highly gravity-dependent - it has little actual tissue mass and deforms under its own weight. This is relevant to astronauts in space, but is actually much more broadly important to life on Earth. Every time we change our posture - for example from lying to standing - the direction in which gravity acts across the lung changes. These postural effects can become clinically important in critically ill patients. Currently there is debate in the scientific world about how gravity actually influences lung function, and how it interacts with other factors such as the anatomical structure of the airways and blood vessels of the lung. New technology developed by researchers at the University of Oxford now has the potential to help answer some of these questions. This device uses a technique called laser absorption spectroscopy to make measurements of breathing gases that are much more accurate than previous techniques - it is able to count the number of oxygen, carbon dioxide and water vapour molecules in and out while a person breathes. A non-invasive 15-minute breathing test with this technology provides information on the distributions of airflow and blood flow in the lungs, and it has been deployed successfully in the operating theatre and in intensive care units. This study aims to make comprehensive measurements of lung physiology under altered gravitational conditions and develop the technology and measurement techniques for possible future use in microgravity. This will include measurements of oxygen and carbon dioxide from the laser gas analyser (and measures of lung inhomogeneity obtained from these), lung mechanics and breathing drive.

Enrollment

15 patients

Sex

All

Ages

18 to 55 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • healthy volunteer who has provided informed consent

Exclusion criteria

  • any significant medical problem, as documented extensively in the study ethics documentation.

Trial design

Primary purpose

Basic Science

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

15 participants in 1 patient group

Centrifuge study
Experimental group
Description:
High G acceleration on a long-arm human centrifuge
Treatment:
Other: High G acceleration on a long-arm human centrifuge

Trial contacts and locations

1

Loading...

Data sourced from clinicaltrials.gov

Clinical trials

Find clinical trialsTrials by location
© Copyright 2024 Veeva Systems