Cardiorespiratory Fitness Training in Patients with Incomplete Spinal Cord Injury

The CRF training will take place on an arm cycle ergometer, or on an recumbent cross trainer. The duration and intensity of these 2 CRF gait training sessions will be determined by scientific exercise guidelines. A practical way of increasing vigorous-intensity exercise is high-intensity interval training (HIIT). The HIIT intervention consist of 2-3 trainings per week, with each exercise session including a 5-minute warm-up, 30-second interval periods (with a power output up to 90% of the peak power output (PPO)), and 30-second recovery periods. There are 5 minutes of 50% of PPO between interval periods. The number of interval periods increases during the intervention period, resulting in a maximum total training time of 35 minutes.