Chronic obstructive pulmonary disease (COPD) is characterised by non-reversible bronchial obstruction associated with systemic disorders and comorbid factors. Dynamic hyperinflation during an exercise increase dyspnea and can reduce exercise capacity. Stair climbing is associated with prolonged dynamic hyperinflation and severe dyspnea in COPD patients. The aim of this study is to carry out the effect of an energy conservation technique on dyspnea to facilitate stair climbing.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
22
During the session of stair climbing, patients will perform a break at least of 5 seconds every 3 steps.
Patients will realize one session of stair climbing at their own pace
Groupe Hospitalier du Havre
Le Havre, Normandy, France
Difference in Dyspnea at iso time and at time limit between the two sessions
Difference in dyspnea using Modified Borg Scale (0 - 10 points) 0=no dyspnea ; 10 = maximal effort
Time frame: The outcome will be measured before, at the end and every one minute during the stair climbing sessions. The two stair climbing sessions will perform the same day, separate from 30 minutes minimum for a total time frame of 1 day.
difference in time required for the patient to climb the 6 floors
Difference in time (seconds) will be evaluated using a stopwatch
Time frame: The outcome will be collected at the end of each sessions. The two stair climbing sessions will perform the same day, separate from 30 minutes minimum for a total time frame of 1 day.
Difference in respiratory rate
Difference in respiratory rate (cycles per minute) will be measured breath-by-breath using a Respiratory Inductive Plethysmography
Time frame: Data will be continuously collected during every sessions. The two stair climbing sessions will perform the same day, separate from 30 minutes minimum for a total time frame of 1 day.
Difference in inspiratory capacity
Difference in inspiratory capacity (Liters) will be measured using a portable spirometer
Time frame: The outcome will be collected before and at the end of each sessions (within 2 minutes after the end). The two stair climbing sessions will perform the same day, separate from 30 minutes minimum for a total time frame of 1 day.
Difference in Cardiac Frequency
Difference in Cardiac Frequence (bpm) using a pulse oximetry
Time frame: Data will be continuously collected during every sessions. The two stair climbing sessions will perform the same day, separate from 30 minutes minimum for a total time frame of 1 day.
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Difference in Oxygen Saturation
Difference in Oxygen Saturation
Time frame: Data will be continuously collected during every sessions. The two stair climbing sessions will perform the same day, separate from 30 minutes minimum for a total time frame of 1 day.
Difference in peripheral muscle oxygenation
Muscle oxygenation (arbitrary unit) will be evaluated using Near-infrared spectroscopy technology.
Time frame: Data will be continuously collected during every sessions. The two stair climbing sessions will perform the same day, separate from 30 minutes minimum for a total time frame of 1 day.
Difference in tidal volume
Difference in tidal volume (Liters) will be measured breath-by-breath using a portable spirometer
Time frame: The outcome will be collected before and at the end of each sessions (within 2 minutes after the end). The two stair climbing sessions will perform the same day, separate from 30 minutes minimum for a total time frame of 1 day.
Difference in muscular fatigue
Difference in muscular fatigue using Modified Borg Scale (0 - 10 points) 0=no muscular fatigue ; 10 = maximal effort
Time frame: The outcome will be measured before, at the end and every one minute during the stair climbing sessions. The two stair climbing sessions will perform the same day, separate from 30 minutes minimum for a total time frame of 1 day.