Wearable Assessment of Thoracic, Cardiac Health and Exercise Performance Trial

"Participants will wear Apple Watch Series 9 during cardiopulmonary exercise test (in Visit 1), 1-week study period and 6-Minute walk distance test (in Visit 2) to have assessment of maximal oxygen uptake and pre- and post-SaO2.~During 1-week study period, participants will measure their oxygen saturation once daily with a medical-grade pulse oximeter while wearing the smartwatch continuously."