1 Director of Bone-Muscle Research Center, University of Texas at Arlington, Arlington, TX, United States.
2 Department of Health Sciences, University of Eastern Piedmont, Novara, Italy.
3 Senior Lecturer, Manchester Metropolitan University, Manchester, United Kingdom.
4 Senior Scientist and Adjunct Professor, Department of Orthopaedic Surgery and Rehabilitation, University of Texas Medical Branch, Galveston, TX, United States.