None listed
Conditions
Brief summary
Aim of the study: To validate the regression equations of the six-minute walk test and incremental shuttle walk test developed from previous study Hypothesis: Field walking tests can be used to prescribe lower limb exercise intensity in clinical rehabilitation
Interventions
This is a crossover study. Subjects are required to perform: Visit 1 - One incremental cycle test (ICT) and two 6MWTs. Visit 2 - A ten-minute constant work rate (CWR) cycle exercise prescribed from the 6MWT and a ten-minute CWR walking exercise at 80% of average speed of the better 6MWT. Visit 3 - Two incremental shuttle walk tests (ISWT). Visit 4 - A ten-minute CWR cycle exercise prescribed from the ISWTs and a ten-minute CWR walking exercise at 70% of peak speed of the better ISWT. The durati
This is a crossover study. Subjects are required to perform: Visit 1 - One incremental cycle test (ICT) and two 6MWTs. Visit 2 - A ten-minute constant work rate (CWR) cycle exercise prescribed from the 6MWT and a ten-minute CWR walking exercise at 80% of average speed of the better 6MWT. Visit 3 - Two incremental shuttle walk tests (ISWT). Visit 4 - A ten-minute CWR cycle exercise prescribed from the ISWTs and a ten-minute CWR walking exercise at 70% of peak speed of the better ISWT. The duration of the wash-out period between exercise periods or exercise tests is 30 minutes. Each visit will be 2-3 days apart and all testing will be completed within 2 weeks. The order of exercise testing will not be randomised because the intensities of the constant work rate (CWR) cycle and walking exercise periods need to be prescribed from the cycle and walking tests.
Sponsors
University of Sydney
Study design
Allocation
Non-randomised trial
Intervention model
Crossover
Primary purpose
Treatment
Masking
Open (masking not used)
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
Subjects with mild to severe stable chronic obstructive pulmonary disease (COPD) with forced expiratory volume in 1 second / forced vital capacity (FEV1/FVC) <70% predicted and post bronchodilator FEV1 < 80% predicted as defined by Australian Chronic Obstructive Pulmonary Disease (COPDX) guidelines.
Exclusion criteria
Fever or increased sputum; hospital admission in the previous month; unable to wear a facemask due to claustrophobia; on long term oxygen therapy; cardiovascular, neurological or musculoskeletal co-morbidities that may limit exercise performance; completed pulmonary rehabilitation in the last 12 months.
Outcome results
None listed