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Muscle Function After Lung Transplantation in Patients With Chronic Obstructive Pulmonary Disease (COPD) — COPD  

COPD Clinical Trial

Official title:
Muscle Function After Lung Transplantation in Patients With Chronic Obstructive Pulmonary Disease (COPD)

Clinical Trial Summary

The purpose of the project is to investigate changes in the quadriceps muscle and cardiovascular regulation during exercise in relation to improved lung function after lung transplantation in patients with COPD.

Clinical Trial Description

Dysfunctional skeletal musculature of the lower limbs is related to low quality of life, exercise intolerance and higher mortality in patients with COPD. Limb muscle dysfunction in COPD consists of muscle atrophy and reduced muscle strength but also intra-muscular alterations in oxidative capacity and mitochondrial function are often present. Moreover, reduced blood flow to exercising muscle may also contribute to the muscle dysfunction in COPD. The mechanisms responsible for muscle dysfunction in COPD patients remain unclear but could be a consequence of reduced lung function, inflammation, medications or low physical activity. Loss of lung function with COPD is normally irreversible so the transition to near-normal lung function after lung transplantation is a unique model to investigate the adaptation of the limb muscle to improved lung function. Thus, the purpose of this project is to investigate the effect of lung transplantation on limb muscle function (mitochondrial function, oxidative enzyme capacity, fiber type distribution, oxygen delivery/uptake) and daily physical activity level in patients with COPD. The project has a translational focus on muscle dysfunction in COPD and uses methodologies from clinical medicine, integrative physiology and molecular biochemistry in order to gain knowledge of mechanisms behind limb muscle dysfunction and exercise intolerance in COPD. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03548857
Study type Observational
Source Rigshospitalet, Denmark
Contact Ulrik Winning Iepsen, MD, PhD
Phone +4540732842
Email ulrik_winning@hotmail.com
Status Recruiting
Phase
Start date August 20, 2018
Completion date May 30, 2020
View Details
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