1. Appalachian Institute for Health and Wellness, Beaver College of Health Sciences, Appalachian State University, Boone, NC 28607, USA
2. Karl E. Peace Center for Biostatistics, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA 30458, USA
3. Department of Kinesiology, University of Georgia, Athens, GA 30602, USA
4. Department of Physical Medicine and Rehabilitation, Children’s Healthcare of Atlanta, Atlanta, GA 30322, USA
5. Department of Pediatrics, Children’s Healthcare of Atlanta, Atlanta, GA 30322, USA
6. Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA