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Influence of Muscular Atrophy on Biological and Functional Benefit of Respiratory Rehabilitation in Patients With Chronic Respiratory Failure (INSPIRE)

This study has been completed.
Ministry of Health, France
Information provided by (Responsible Party):
Centre Hospitalier Universitaire de Saint Etienne Identifier:
First received: June 16, 2009
Last updated: July 23, 2014
Last verified: July 2014

The prevalence of chronic respiratory failure (CRF) is increasing worldwide and will become the 3rd cause of death by 2020. At the stage of the disease requiring ventilatory assistance, this relates to 50,000 patients in France, life expectancy is very limited, and quality of life is poor.

CRF led to a reduction in muscle mass, which is found in 35 and 55% of patients, in some to a profound cachexia. A reduced fat free mass (FFM) is a factor associated with a poor tolerance to exercise and an halved survival. The exact causes and mechanisms leading to cachexia are not yet established. Recently, a chronic inflammatory condition has been quoted as a putative cause. This chronic inflammation would involve the molecular mechanisms leading to poor regulation of the balance of synthesis / protein degradation in muscle. A decrease in plasma and muscle amino acids was found among patients with a low FFM.. In addition, a decrease of plasma levels of some anabolic hormones, GH and androgens or IGF-1 has been found that could explain a lack of protein synthesis.

It is now well established that respiratory rehabilitation, including a program of exercise reconditioning, increases tolerance to exercise and improve the quality of life. Besides the classical type of endurance exercises stimulating the cardio-respiratory system, it is suggested to add resistance exercises. Several studies have reported the benefit of this strategy but the link with intracellular molecular pathways has not been described; moreover, it is unknown whether the existence of an initial muscular atrophy influences the gain in muscle strength/mass.

Condition Intervention
Respiratory Insufficiency
Procedure: Respiratory rehabilitation

Study Type: Interventional
Study Design: Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Basic Science
Official Title: Influence of Muscular Atrophy on Biological and Functional Benefit of Respiratory Rehabilitation in Patients With Chronic Respiratory Failure

Resource links provided by NLM:

Further study details as provided by Centre Hospitalier Universitaire de Saint Etienne:

Primary Outcome Measures:
  • Gain in exercise tolerance (relative variation of the 6 min walking distance and maximal exercise capacity on bicycle (peak VO2) combined with activation of the pathway for muscle protein synthesis [ Time Frame: before and at the outcome of the reconditioning program in the effort ]

Secondary Outcome Measures:
  • Quality of life assessed by questionnaire [ Time Frame: before and at the outcome of the reconditioning program in the effort ]

Enrollment: 32
Study Start Date: April 2005
Study Completion Date: September 2013
Primary Completion Date: September 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Respiratory rehabilitation Procedure: Respiratory rehabilitation
The training begins 5 days after the initial assessment. It consists of 3 weekly sessions for 8 consecutive weeks, including the following activities interspersed with periods of rest, according to the needs of patients

Detailed Description:

We therefore propose to explore the effect of a rehabilitation program including endurance and resistance exercises on muscle biopsies.

The present study should help to know the molecular pathways implicated in muscle atrophy in CRF patients and to assess their evolution with rehabilitation. This could lead to individualized recommendation for exercise program according to the muscle mass of the patients.


Ages Eligible for Study:   40 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Prescription of an exercise training program as part of a respiratory rehabilitation
  • Existence of an obstructive ventilatory deficit
  • Signature of written consent

Exclusion Criteria:

  • Exacerbation of COPD
  • Patient with a long-term oxygen therapy
  • Active smoker
  • Lower limb locomotor limitation preventing to achieve the full respiratory rehabilitation program
  • Lower limbs arteritis
  • Myocardial infarction or pulmonary embolism of less than 3 months
  • Long term anticoagulant
  • Type 1 diabetes
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Please refer to this study by its identifier: NCT00922857

CHU de Saint-Etienne
Saint-etienne, France, 42055
Sponsors and Collaborators
Centre Hospitalier Universitaire de Saint Etienne
Ministry of Health, France
Principal Investigator: Frédéric COSTES, MD PhD CHU de Saint-Etienne
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Centre Hospitalier Universitaire de Saint Etienne Identifier: NCT00922857     History of Changes
Other Study ID Numbers: 0408079
2005/0023 ( Other Identifier: DGS )
Study First Received: June 16, 2009
Last Updated: July 23, 2014

Keywords provided by Centre Hospitalier Universitaire de Saint Etienne:
Respiratory Insufficiency
Muscular Atrophy
Respiratory rehabilitation

Additional relevant MeSH terms:
Respiratory Insufficiency
Muscular Atrophy
Pulmonary Valve Insufficiency
Pathological Conditions, Anatomical
Respiration Disorders
Respiratory Tract Diseases
Neuromuscular Manifestations
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms
Heart Valve Diseases
Heart Diseases
Cardiovascular Diseases processed this record on May 25, 2017