作者单位:Department of Physical Therapy and Athletic Training, Saint Louis UniversitySt Louis, MO, United[1]Division of Biostatistics, Washington University, School of MedicineSt Louis, MO, United States[2]Program in Physical Therapy, Department of Orthopaedic Surgery, Washington University School of[3]Department of Orthopaedic Surgery, Washington University, School of MedicineSt Louis, MO, United[4]