1 Department of Cardiovascular Diseases, The John Ochsner Heart and Vascular Institute, Ochsner Clinical School, The University of Queensland School of Medicine, New Orleans, LA 70121, USA. Electronic address: clavie@ochsner.org.
2 Department of Cardiology/Internal Medicine, University of California at San Francisco School of Medicine, San Francisco, CA, USA.
3 PROFITH "PROmoting FITness Health through Physical Activity" Research Group, Department of Physical Education and Sports, Faculty of Sports Sciences, Granada, Spain.