1 Department of Physical Medicine and Rehabilitation, Gregorio Marañón General University Hospital, Gregorio Marañón Health Research Institute, Madrid, Spain (Drs Cortina Barranco, Castillo Velasquez, Supervia, and Arroyo Riaño) and Division of Preventive Cardiology, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota (Drs Supervia and Smith).