Jane E. B. Reusch, MDProfessor of Medicine, Biochemistry and BioengineeringUniversity of Colorado and Denver VAMC Aurora and Denver, CO, USAJudith G. Regensteiner, PhD, MA, BAProfessor of MedicineUniversity of Colorado Denver, CO, USAKerry J. Stewart, Ed.D., FAHA, MAACVPR, FACSM Professor of MedicineDirector, Clinical and Research Exercise Physiology Johns Hopkins University School of MedicineBaltimore, MD, USA Aristidis Veves, MD, DScRongxiang Xu, MD, Professor of SurgeryHarvard Medical SchoolBeth Israel Deaconess Medical Center Boston, MA, USA