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Effects of Strength Training in Combination With Endurance Training on Exercise Tolerance in Patients With Chronic Obstructive Pulmonary Disease (COPD)

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ClinicalTrials.gov Identifier: NCT01091623
Recruitment Status : Completed
First Posted : March 24, 2010
Last Update Posted : March 24, 2010
Sponsor:
Information provided by:
Medical University of Vienna

Brief Summary:

Background. Exercise intolerance is one of the most devastating consequences of chronic obstructive pulmonary disease (COPD). Abnormalities in peripheral muscle function such as weakness and reduction in oxidative enzyme activities are commonly found in these patients and may contribute to exercise intolerance.To evaluate whether a systemic weightlifting exercise may improve exercise capacity better than endurance training, or a combined training is more effective, the investigators compared three different training regimens, endurance training alone, systemic weightlifting training alone or a combination of both endurance and weightlifting training.

Methods.36 patients with stable COPD will be evaluated before and after a 4 month training program. Each evaluation include a stepwise exercise test on an ergocycle up to the individual maximal capacity during which minute ventilation (VE), oxygen consumption (VO2), carbon dioxide production (VCO2), and arterial lactic acid concentration will be measured and the peripheral muscle strength will be determined with the one repetition maximum for eight different muscle groups. Percutaneous needle muscle biopsy from the M.vastus lateralis will be performed before and after the training period in order to determine the fiber-type proportions. Patients are assigned to one of the following three groups (1) endurance training consisted of 20 min exercise sessions on a calibrated ergocycle two times a week, with a target training intensity at 60% of individual maximum oxygen uptake, (2) systemic weightlifting training two times a week with eight different exercises, each session consist of 15 repetitions of each muscle group, (3) combination of endurance training and systemic weightlifting training.

Statistical analysis. Baseline data for all patients enrolled in the study will be compared by one-way analysis of variance for the three study groups. Results before and after training will be analyzed by two- way analysis of variance.


Condition or disease Intervention/treatment Phase
Chronic Obstructive Pulmonary Disease Other: training Not Applicable

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 36 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Study Start Date : June 2005
Actual Primary Completion Date : January 2010

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Arm Intervention/treatment
Active Comparator: strength training Other: training
Active Comparator: endurance training Other: training
Active Comparator: combined training Other: training



Primary Outcome Measures :
  1. increase of exercise capacity


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Ages Eligible for Study:   40 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Criteria

Inclusion Criteria:

  1. age: 40-75 years
  2. mild to moderate COPD patients according to the staging schemata of the austrian society of lung and tuberculosis disease (ÖGLUT)

Exclusion Criteria:

  1. acute infection
  2. reduced left ventricular function
  3. myocardial infarction
  4. stroke
  5. severe pulmonary hypertension (mpap>40mmHg)
  6. insufficient treated hypertension RR>160/95) (participation with sufficient treatment )
  7. severe cardiac arrhythmia
  8. malignant diseases
  9. severe osteoporosis
  10. nicotine abuses
  11. other severe chronic diseases

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01091623


Locations
Austria
Medical University of Vienna
Vienna, Austria, 1090
Sponsors and Collaborators
Medical University of Vienna

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
ClinicalTrials.gov Identifier: NCT01091623     History of Changes
Other Study ID Numbers: 001/2005
First Posted: March 24, 2010    Key Record Dates
Last Update Posted: March 24, 2010
Last Verified: May 2005

Keywords provided by Medical University of Vienna:
improvement of exercise capacity in patients with COPD

Additional relevant MeSH terms:
Lung Diseases
Lung Diseases, Obstructive
Pulmonary Disease, Chronic Obstructive
Respiratory Tract Diseases