This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Exercise Training in Sarcoidosis (EXTRAS Study)

This study has been completed.
Information provided by:
University Hospital, Gasthuisberg Identifier:
First received: December 13, 2004
Last updated: June 4, 2008
Last verified: June 2008

Exercise intolerance and reduced health status have been found in patients with sarcoidosis and has been related to skeletal muscle weakness. The present researchers reason that skeletal muscle weakness is, at least in part, related to physical inactivity and therefore partially reversible following a structured exercise training program. Nevertheless, the effects of exercise training have never been studied in patients with sarcoidosis. Therefore, the present study is undertaken to explore the effects of exercise training in patients with sarcoidosis. A priori, the following hypotheses are formulated:

  • A 12-week exercise training program improves health status, quality of life and exercise capacity in patients with sarcoidosis as compared to sarcoidosis patients without exercise intervention.
  • A 12-week exercise training program improves skeletal muscle function and reduces complaints of anxiety and depression in patients with sarcoidosis as compared to sarcoidosis patients without exercise intervention.
  • A 12-week exercise training program reduces circulating levels of inflammatory markers in patients with sarcoidosis as compared to sarcoidosis patients without exercise intervention.

Condition Intervention
Sarcoidosis Behavioral: High-intensity exercise training

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Single
Official Title: EXercise TRAining in Sarcoidosis (EXTRAS Study): A Prospective, Randomized, Controlled, Crossover Trial

Resource links provided by NLM:

Further study details as provided by University Hospital, Gasthuisberg:

Primary Outcome Measures:
  • Health status: Medical Outcomes Study 36-Item Short-Form Health Survey
  • Disease-specific quality of life: Sarcoidosis Health Questionnaire
  • Peak exercise capacity: a symptom-limited peak exercise test on a cycle ergometer
  • Functional exercise capacity (I): a symptom-limited endurance cycling test at 70% of the achieved peak external load
  • Functional exercise capacity (II): the distance walked in 6 minutes

Secondary Outcome Measures:
  • Pulmonary function: forced vital capacity and transfer factor for carbon monoxide
  • Muscle function: isometric quadriceps femoris muscle peak torque
  • Systemic inflammation: circulating levels of IL-2, sIL-2r, IL-6, IL-8, TNF-alpha, sTNFR-p55, sTNFR-p75
  • Anxiety and depression: Hospital Anxiety and Depression Scale
  • Health-related quality of life (I): Chronic Respiratory Disease Questionnaire
  • Health-related quality of life (II): St. George's Respiratory Questionnaire

Estimated Enrollment: 30
Study Start Date: February 2004
Estimated Study Completion Date: August 2005
Detailed Description:
The EXTRAS study is a prospective, randomized, controlled, 24-week crossover clinical trial in which the participants are randomly assigned to receive 12 weeks of dynamic resistance and whole-body endurance exercises followed by 12 weeks without intervention or vice versa. Consenting participants will be assessed at baseline (before randomization, week 0) and at weeks 12 and 24.

Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Main diagnosis: previously diagnosed sarcoidosis according to the latest ATS/ERS/WASOG statement on sarcoidosis (AJRCCM 1999)

Exclusion Criteria:

  • A history of neurosarcoidosis
  • Undergoing structured exercise training at the time of enrollment or in the preceding 6 months
  • Current participation in a pharmacological study
  • Cardiovascular abnormalities on the ECG during baseline peak exercise test
  • A 'normal' baseline peak oxygen uptake (≥90% of the predicted values) in combination with a 'normal' quadriceps peak torque or distance walked in 6 minutes
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00099424

University Hospital Leuven
Leuven, Vlaams-Brabant, Belgium, B-3000
Sponsors and Collaborators
University Hospital, Gasthuisberg
Principal Investigator: Martijn A. Spruit, PhD Katholieke Universiteit Leuven
Study Director: Marc Decramer, PhD MD University Hospital, Gasthuisberg
Study Chair: Michiel J. Thomeer, MD University Hospital, Gasthuisberg
  More Information Identifier: NCT00099424     History of Changes
Other Study ID Numbers: ML2563
Study First Received: December 13, 2004
Last Updated: June 4, 2008

Keywords provided by University Hospital, Gasthuisberg:
exercise training
resistance training
endurance training
Boeck's Sarcoid
Besnier-Boeck Disease

Additional relevant MeSH terms:
Lymphoproliferative Disorders
Lymphatic Diseases processed this record on September 21, 2017