Research Article: PDF OnlyThe effect of age and competition level on subtle motor performance in adolescents medically-cleared post-concussion Preliminary findingsCrasta, Jewel E. PhD, OTR/L1,2; Raja, Altamash E. DO, CSCS3; Caffo, Brian S. PhD4; Hluchan, Christine M. MD3; Suskauer, Stacy J. MD1,3,5Author Information 1 Kennedy Krieger Institute 2Division of Occupational Therapy, The Ohio State University 3Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine 4Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health 5Department of Pediatrics, Johns Hopkins University School of Medicine. Corresponding author: Stacy J Suskauer, Kennedy Krieger Institute, 716 N. Broadway, Baltimore, MD 21205, Phone: (443) 923-9440, Fax: 443-923-9255. Email: [email protected] Author Disclosures: There are no competing interests or financial benefit to the authors to report. Study Funding: This study was supported by the National Institutes of Health (S.S.: R21HD080378, and R01HD090266). Kennedy Krieger Institute/Johns Hopkins University Intellectual & Developmental Disabilities Research Center (IDDRC) U54 HD079123 American Journal of Physical Medicine & Rehabilitation: September 14, 2020 - Volume Publish Ahead of Print - Issue - doi: 10.1097/PHM.0000000000001589 Buy PAP Metrics Abstract Objective To examine the effect of age and level of competition on subtle motor performance in adolescents who have recently been medically-cleared post-concussion (MC post-concussion) and never-injured controls. Design Thirty adolescents who were recently MC post-concussion (12-18 years) and 30 never-concussed, typically-developing controls were examined using the Revised Physical and Neurologic Examination of Subtle Signs (PANESS) and the Immediate Post-Concussion Assessment and Cognitive Test (ImPACT) Results Older age was associated with better ImPACT scores in both groups, while only the control group showed improved motor performance on the PANESS with increasing age. Adolescents across both groups participating at a higher level of competition (school or travel level) had better motor performance on the PANESS than those participating at a lower level of competition (recreational level or no sports participation). Adolescents MC post-concussion had greater motor deficits on the PANESS than controls. Conclusion Following medical clearance, adolescents with a history of recent concussion demonstrate alterations in the relationship between motor function and age. The PANESS merits further exploration as a measure that is sensitive to factors affecting motor performance such as age and level of athletic competition as well as to persistent subtle motor deficits in adolescents MC post-concussion. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.