1 Exercise Physiology Laboratory, Department of Integrative Biology, University of California, Berkeley, CA, USA.
2 Rehabilitation Clinical Trials Center, Division of Respiratory and Critical Care Physiology and Medicine, and The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA.
3 Departments of Kinesiology and Anatomy and Physiology, Kansas State University, Manhattan, KS, USA.
4 School of Kinesiology, Auburn University, Auburn, AL, USA.