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Effects of Aerobe Interval Training and Moderate Continuous Training in Chronic Obstructive Pulmonary Disease Patients

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ClinicalTrials.gov Identifier: NCT00908765
Recruitment Status : Completed
First Posted : May 27, 2009
Last Update Posted : January 3, 2013
Sponsor:
Information provided by (Responsible Party):
Norwegian University of Science and Technology

Brief Summary:
Reduced exercise tolerance is one of the hallmarks of COPD. The principal causes for exercise intolerance are ventilatory limitation leading to deconditioning and inactivity. So far it is poorly understood which form of exercise is the most effective in training this condition. The investigators want to study the physiological response to two different training programs (High intensity aerobe interval training and moderate continuous aerobe training)with special focus on cardiac and skeletal muscle adaptions

Condition or disease Intervention/treatment Phase
COPD Chronic Obstructive Pulmonary Disease Behavioral: Exercise Not Applicable

Detailed Description:

Reduced exercise tolerance is one of the hallmarks of COPD and The principal causes for exercise intolerance are ventilatory limitation leading to deconditioning and inactivity. However the weak correlation between exercise capacity and FEV1 implies that other factors than reduced pulmonary function contributes to this impairment . Several studies have found changes in skeletal muscle, with fibre shift, increased oxidative stress, increased inflammatory cytokines and impaired mitochondrial function, suggesting a lower limb dysfunction

Numerous exercise studies in COPD patients have shown physiological and physiological benefits of training and endurance training is now regarded as an important part in pulmonary rehabilitation. It is still uncertain what type of endurance training that is most favourable for COPD patients.

In patients with heart failure and metabolic syndrome aerobe interval exercise have be shown to be superior in improving aerobic capacity and cardiac function

We therefore want conduct a study comparing training effects in patients with moderate to severe COPD, that participated in an identical training program that in HF and metabolic syndrome patients gave significant improvement in aerobic capacity, cardiac function and skeletal muscle function.

Patients will therefore be assigned to either 4x4 minutes high intensity interval treadmill exercise or continuous moderate intensity treadmill exercise 3 times pr week for 12 weeks. Aerobic capacity and work economy, pulmonary,cardiac and skeletal muscle function before and after the exercise training will be measured.


Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 20 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
Official Title: Effects of Aerobe Interval Training and Moderate Continuous Training in COPD Patients
Study Start Date : August 2008
Actual Primary Completion Date : December 2008
Actual Study Completion Date : September 2009

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Arm Intervention/treatment
Active Comparator: Aerobe Interval Training
High aerobic intensity treadmill walking. 4 by 4 minutes interval training on a graded treadmill at a heart rate corresponding to 85-95% of maximal heart rate. 3 times per week for 10 weeks.
Behavioral: Exercise
  1. High aerobic intensity treadmill walking. 4 by 4 minutes interval training on a graded treadmill at a heart rate corresponding to 85-95% of maximal heart rate. 3 times per week for 10 weeks.
  2. Moderate continuous intensity treadmill walking on a graded treadmill at a heart rate corresponding to 60-70 of maximal heart rate, 3 times per week for 10 weeks
Other Name: non
Active Comparator: Moderate Continous Training
Moderate continuous intensity treadmill walking on a graded treadmill at a heart rate corresponding to 60-70 of maximal heart rate, 3 times per week for 10 weeks
Behavioral: Exercise
  1. High aerobic intensity treadmill walking. 4 by 4 minutes interval training on a graded treadmill at a heart rate corresponding to 85-95% of maximal heart rate. 3 times per week for 10 weeks.
  2. Moderate continuous intensity treadmill walking on a graded treadmill at a heart rate corresponding to 60-70 of maximal heart rate, 3 times per week for 10 weeks
Other Name: non



Primary Outcome Measures :
  1. VO2-peak [ Time Frame: At inclusion and after 12 weeks of exercise training ]

Secondary Outcome Measures :
  1. Cardiac function [ Time Frame: At inclusion and after 12 weeks of exercise training ]
  2. Skeletal muscle function [ Time Frame: At inclusion and after 12 weeks of exercise training ]


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Ages Eligible for Study:   45 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • COPD with FEV1 25-60 % of exp , FEV1%FVC<70 %. Age 45-80 years

Exclusion Criteria:

  • Heart failure
  • symptomatic coronary artery disease
  • cancer
  • alcohol and drug abuse
  • severe mental illness
  • Lower respiratory infection last 4 weeks
  • participation in exercise- or lung rehabilitation program last 3 months.
  • oral steroid use

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): NCT00908765


Locations
Norway
Department of Circulation and Medical Imaging , NTNU
Trondheim, Norway, 7089
Sponsors and Collaborators
Norwegian University of Science and Technology
Investigators
Principal Investigator: Sigurd Steinshamn, MD PhD NTNU , Trondheim
Principal Investigator: Eivind Brønstad, MD NTNU, Trondheim

Publications of Results:
Responsible Party: Norwegian University of Science and Technology
ClinicalTrials.gov Identifier: NCT00908765     History of Changes
Other Study ID Numbers: 42008754
First Posted: May 27, 2009    Key Record Dates
Last Update Posted: January 3, 2013
Last Verified: January 2013

Keywords provided by Norwegian University of Science and Technology:
Exercise Training COPD

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