Supramaximal High-Intensity Interval Training in People With and Without Chronic Obstructive Pulmonary Disease

"Training is performed two to three times per week for a total of 30 sessions using a group format.~Both regimens start with a five-minute warm-up and ends with a five-minute cool-down, performed at an intensity corresponding to 30% of the maximal work rate achieved during a CPET (i.e., max aerobic power \[MAP\]) with a self-selected pedalling cadence of 50-70 revolutions per minute (RPM).~All exercise sessions will be held and supervised by an experienced health care professional, i.e. physiotherapists or other health professional.~The different types of exercise training is described under the specific arm.~Following the first 12-week training period, participants with COPD will enter a 21-month maintenance phase. They will continue to exercise using the same training modality (HIIT or MICT) as during the first 12-weeks but can select between three different settings to continue their training: Home, Outpatient, or Mix setting."