1. *Division of Rheumatology, Allergy, and Immunology, Tufts Medical Center, Boston, MA;
2. †UF Health Sports Performance Center, Department of Physical Medicine and Rehabilitation, University of Florida, Gainesville;
3. ‡Drexel University College of Medicine, Philadelphia, PA;
4. §Osteoarthritis Action Alliance, Thurston Arthritis Research Center, University of North Carolina at Chapel Hill;
5. ‖Department of Kinesiology, Michigan State University, East Lansing;
6. #Excusercise, LLC, Waltham, MA;
7. **University of North Carolina Therapy Services, UNC Wellness Center at Meadowmont, Chapel Hill;
8. ††Department of Epidemiology, Thurston Arthritis Research Center, Injury Prevention Research Center, Osteoarthritis Action Alliance, University of North Carolina at Chapel Hill;
9. §§Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Finland; Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania; Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; World Health Organization Collaborating Centre for Public Health Aspects of Musculoskeletal Health and Aging, Liege, Belgium;
10. ‖‖Telos SPC, Boston, MA;
11. ¶¶Department of Medicine, Division of Endocrinology, Diabetes & Metabolism, NYU Grossman School of Medicine, New York, NY;
12. ##Department of Exercise and Sport Science, University of North Carolina at Chapel Hill;
13. ###Department of Physical Therapy, Congdon School of Health Sciences, High Point University, NC;
14. †††Department of Physical Therapy, Marquette University, Milwaukee, WI;
15. ‡‡‡Department of Physical Therapy and Athletic Training, Northern Arizona University, Flagstaff;
16. ‖‖‖Division of Physical Therapy, School of Health and Rehabilitation Sciences, Ohio State University, Columbus;
17. ¶¶¶Department of Physical Therapy, University of Delaware, Newark;
18. ****Division of Physical Therapy, Department of Allied Health Sciences, University of North Carolina at Chapel Hill;
19. ††††Division of Physical Therapy Education, University of Nebraska Medical Center, Omaha;