Heart rate (HR), respiratory rate (RR), blood pressure (BP), and oxygen saturation (SpO2) will be measured at rest and after all outcome measures are completed. Rate of Perceived Exertion (RPE) (0-10 per modified Borg scale) will be measured after each outcome measure. In addition, HR will be measured after each outcome measure. SpO2 will be continually monitored via pulse oximetry. Fraction of inspired oxygen (FiO2) will be titrated per MD orders. If SpO2 drops below MD-specified parameters, patients will first be given a 3-minute seated rest break. If SpO2 recovers above MD-specified parameters after rest break, activity will resume. If SpO2 remains below MD-specified parameters after rest break or continues to drop with activity, FiO2 will be titrated to maintain SpO2 within MD-specified parameters.