Improving 24-hour Blood Pressure Stability in Spinal Cord Injury with Low Oxygen Therapy

"Participants will breathe variable concentrations of inspired oxygen, carbon dioxide, and nitrogen. The concentrations will be adjusted on a breath-by-breath basis to maintain end-tidal targets.~Each daily session of the intervention will consist of forty 1-minute intervals. Each 1-minute interval will consist of 40 seconds of hypercapnic hypoxia, increasing the partial pressure of end-tidal carbon dioxide by +4 mmHg and decreasing the partial pressure of end-tidal oxygen to 45 mmHg, followed by 20 seconds in simulated room air to return to baseline carbon dioxide and oxygen levels."