Effects of Strength Training in Combination With Endurance Training on Exercise Tolerance in Patients With Chronic Obstructive Pulmonary Disease (COPD)
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.
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label
Chronic Obstructive Pulmonary Disease
training, training, training
Medical University of Vienna
Medical University of Vienna
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT01091623
- Information obtained from ClinicalTrials.gov on July 15, 2010
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Medical and Biotech [MESH] Definitions
Financial support for training including both student stipends and loans and training grants to institutions.
On the job training programs for personnel carried out within an institution or agency. It includes orientation programs.
A disease of chronic diffuse irreversible airflow obstruction. Subcategories of COPD include CHRONIC BRONCHITIS and PULMONARY EMPHYSEMA.
Education centers authorized by the Comprehensive Health Manpower Training Act, 1971, for the training of health personnel in areas where health needs are the greatest. May be used for centers other than those established by the United States act.
Hypertrophy and dilation of the RIGHT VENTRICLE of the heart that is caused by PULMONARY HYPERTENSION. This condition is often associated with pulmonary parenchymal or vascular diseases, such as CHRONIC OBSTRUCTIVE PULMONARY DISEASE and PULMONARY EMBOLISM.