title: Effect of modality on cardiopulmonary exercise testing in male and female COPD patients.
abstract: The purpose of this study was to examine the physiological responses to treadmill and cycle cardiopulmonary exercise testing (CPET) in male and female COPD patients. Fifty-five patients [28 males (FEV1=58.2±19.5% predicted), and 27 females (FEV1=65.3±16.6% predicted)] completed a treadmill and a cycle CPET in random order on two separate days. Respiratory and cardiovascular data were obtained. Compared to the cycle CPET, the treadmill elicited greater peak power output and peak oxygen uptake, while arterial saturation at peak exercise was lower with the treadmill; however, there were no differences between the responses in men and women. No differences were observed in heart rate, ventilation, tidal volume/breathing frequency, inspiratory capacity, or dyspnea responses between modalities or sex. The physiological responses between treadmill and cycle CPET protocols are largely similar for both men and women with COPD, indicating that either modality can be used in mild/moderate COPD patients.
authors: Faculty of Physical Education and Recreation, University of Alberta, W1-34 Van Vliet Centre, Edmonton, Alberta, Canada T6G 2H9. Electronic address: shs@lhl.no.
authors: Siri M
authors: SM
authors: Holm
authors: Faculty of Physical Education and Recreation, University of Alberta, W1-34 Van Vliet Centre, Edmonton, Alberta, Canada T6G 2H9. Electronic address: wendy.rodgers@ualberta.ca.
authors: Wendy
authors: W
authors: Rodgers
authors: Faculty of Rehabilitation Medicine, University of Alberta, 8205, 114 Street, 3-48 Corbett Hall, Edmonton, Alberta, Canada T6G 2G4. Electronic address: bob.haennel@ualberta.ca.
authors: Robert G
authors: RG
authors: Haennel
authors: Centre for Lung Health - Covenant Health, 11111 Jasper Avenue, Edmonton, Alberta, Canada T5K 0L4. Electronic address: mafmacdonald@shaw.ca.
authors: G Fred
authors: GF
authors: MacDonald
authors: Pulmonary Division, Department of Medicine, University of Alberta, 8334B Aberhart Centre, Edmonton, Alberta, Canada T6G 2J3. Electronic address: tbryan@ualberta.ca.
authors: Tracey L
authors: TL
authors: Bryan
authors: Pulmonary Division, Department of Medicine, University of Alberta, 8334B Aberhart Centre, Edmonton, Alberta, Canada T6G 2J3. Electronic address: mohit.bhutani@ualberta.ca.
authors: Mohit
authors: M
authors: Bhutani
authors: Pulmonary Division, Department of Medicine, University of Alberta, 8334B Aberhart Centre, Edmonton, Alberta, Canada T6G 2J3. Electronic address: ewong@ualberta.ca.
authors: Eric
authors: E
authors: Wong
authors: Centre for Lung Health - Covenant Health, 11111 Jasper Avenue, Edmonton, Alberta, Canada T5K 0L4; Pulmonary Division, Department of Medicine, University of Alberta, 8334B Aberhart Centre, Edmonton, Alberta, Canada T6G 2J3. Electronic address: michael.stickland@ualberta.ca.
authors: Michael K
authors: MK
authors: Stickland
mesh_terms: D000368:Aged; D000704:Analysis of Variance; D001642:Bicycling; D001794:Blood Pressure; D004562:Electrocardiography; D005080:Exercise Test / Q000379:methods*; D017079:Exercise Tolerance; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis / Q000503:physiopathology* / Q000534:rehabilitation*; D012123:Pulmonary Ventilation / Q000502:physiology*; D012727:Sex Characteristics
keywords: Breathlessness; Chronic obstructive pulmonary disease; Exercise; Inspiratory capacity; Sex