This study will investigate the effects of interval walking training versus continuous walking training in patients with chronic obstructive pulmonary disease. Patients will be recruited during a 3-week inpatient pulmonary rehabilitation program and will be randomized to one of the two intervention groups. All walking training sessions will be performed on the same treadmill. Walking intensity in the continuous walking group will be 60 percent of the average speed of the 6-minute walking test. Patients in the interval training group will perform high intensity intervals at 120% of the 6-minute walking test speed for 60 seconds alternating with 60 seconds of rest. The total exercise duration will be progressively increased from 10 to 32 minutes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
20
Schön Klinik Berchtesgadener Land
Schönau am Königssee, Germany
perceived exertion for dyspnea during walking training
measured via modified Borg scale (0 to 10)
Time frame: day 1 to 21
heart rate during walking training
Time frame: day 1 to 21
perceived exertion for leg fatigue (Borg-scale)
Time frame: during three weeks of rehabilitation
Oxygen saturation during walking training
measured via pulse oximeter
Time frame: day 1 to 21
fat free mass in kilogram
measured via Bioimpedance Analysis
Time frame: day 1 to 21
forced expiratory volume in 1 second (FEV1) in liter
measured by spirometry
Time frame: day 1 to 21
Sit-to-stand-test
5 repetitions of standing up and sitting down from a chair with crossed arms as quick as possible
Time frame: day 1 to 21
6-minute walking test
the best 6-minute walking test out of two tests on admission and at discharge will be taken
Time frame: day 1 to 21
36 item short-form health Survey (SF-36)
questionnaire for disease unspecific quality of life
Time frame: day 1 to 21
chronic respiratory questionnaire (CRQ)
disease specific quality of life questionnaire
Time frame: day 1 to 21
hospital anxiety and depression scale (HADS)
questionnaire on symptoms of anxiety and depression
Time frame: day 1 to 21
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