This is a multi-site collaborative study that will be done in the context of three Quebec hospitals' outpatient pulmonary rehabilitation programs: Montreal Chest Institute; University of Laval, and Hopital Sacre-Coeur Montreal. The objectives are two-fold. First, to determine the Minimal Clinical Important Difference in intensity ratings of perceived breathlessness for each of the 3-min constant rate shuttle walking (3-MWT) and stair stepping (3-MST) protocols in patients with chronic obstructive pulmonary disease (COPD). Second, to test the hypothesis that both the 3-MWT and 3-MST protocols are able to detect statistically significant and clinically-meaningful improvements in exertional breathlessness following an 7-12 week outpatient rehabilitative exercise training program in COPD.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
80
Patients will participate in 3 exercise training sessions/wk for a period of 7-12 wks at one of 4 sites in Quebec. Each training session will include 30-45 min of aerobic training (cycling and/or treadmill walking) at a target intensity of 80% of the maximal heart rate achieved during a symptom-limited incremental cycle exercise test performed prior to the pulmonary rehabilitation program; and 20-30 min of strength training exercises.
McConnell Centre for Innovative Medicine, Research Institute of the McGill University Health Centre
Montreal, Quebec, Canada
RECRUITINGMinimal clinically important difference (MCID) with regards to the change in breathlessness intensity ratings at the end of each of the 3-MST and 3-MWT.
Time frame: Baseline and 7 weeks
Change (post- minus pre- pulmonary rehab) in dyspnea intensity ratings on the Borg 0-10 ratio category scale
Borg 0-10 category ratio scale
Time frame: Baseline and 7 weeks
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.