[1] NIH Natl Rehabil Res Resource Enhance Clin Trials, P2CHD086851, Birmingham, AL USA
[2] Univ Alabama Birmingham, UAB Ctr Exercise Med, 1313 13th St South,Room 300, Birmingham, AL 35205 USA
[3] Univ Alabama Birmingham, Dept Cell Dev & Integrat Biol, Birmingham, AL USA
[4] Univ Alabama Birmingham, Dept Biostat, Sect Res Methods & Clin Trials, Birmingham, AL 35294 USA
[5] Univ Pittsburgh, Med Ctr, Dept Rehabil Sci & Technol, Pittsburgh, PA USA
[6] Univ Pittsburgh, Med Ctr, McGowan Inst Regenerat Med, Pittsburgh, PA USA
[7] Case Western Reserve Univ, Dept Phys Med & Rehabil, Cleveland, OH 44106 USA
[8] Northwestern Univ, Dept Phys Therapy & Human Movement Sci, Chicago, IL 60611 USA
[9] Virginia Tech, Carilion Res Inst, Roanoke, VA USA
[10] Virginia C Crawford Res Inst, Shepherd Ctr, Atlanta, GA USA
[11] Emory Univ, Sch Med, Div Phys Therapy, Atlanta, GA USA
[12] Univ Alabama Birmingham, Dept Med, Div Prevent Med, Birmingham, AL 35294 USA
[13] Univ Alabama Birmingham, Minor Hlth & Hlth Dispar Res Ctr, Birmingham, AL USA
[14] Washington Univ, Sch Med, Phys Therapy Occupat Therapy & Neurol, St Louis, MO USA
[15] Emmes Corp, Rockville, MD USA
[16] Univ Alabama Birmingham, Dept Phys Therapy, Birmingham, AL USA
[17] Univ Delaware, Dept Phys Therapy, Newark, DE USA
[18] Univ Alabama Birmingham, Dept Med, Div Clin Immunol & Rheumatol, Birmingham, AL 35294 USA
[19] Univ Alabama Birmingham, Ctr Outcomes & Effectiveness Res & Educ, Birmingham, AL USA
[20] Univ Texas Hlth Sci Ctr Houston, Dept Neurol, Houston, TX 77030 USA
[21] Penn State Univ, Dept Publ Hlth Sci, State Coll, PA USA
[22] Univ Colorado, Phys Therapy Program, Denver, CO 80202 USA
[23] Einstein Med Ctr, Moss Rehabil Res Inst, Philadelphia, PA USA
[24] Univ Southern Calif, Div Biokinesiol & Phys Therapy, Los Angeles, CA USA
[25] NIH, Natl Ctr Med Rehabil Res, Bldg 10, Bethesda, MD 20892 USA