title: Head Impact Exposure During a Weekend Youth Soccer Tournament.
abstract: Concussion is a known risk in youth soccer, but little is known about subconcussive head impacts. The authors provided a prospective cohort study measuring frequency and magnitude of subconcussive head impacts using accelerometry in a middle school-age soccer tournament, and association between head impacts and changes in (1) symptoms, (2) cognitive testing, and (3) advanced neuroimaging. A total of 17 youth completed the study (41% female, mean 12.6 years). There were 73 head impacts >15g measured (45% headers) and only 2 had a maximum peak linear acceleration >50g No youth reported symptoms consistent with concussion. After correction for multiple comparisons and a sensitivity analysis excluding clear outliers, no significant associations were found between head impact exposure and neuropsychological testing or advanced neuroimaging. The authors conclude that head impacts were relatively uncommon and low in acceleration in youth playing a weekend soccer tournament. This study adds to the limited data regarding head impacts in youth soccer.
authors.affiliation: Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, USA Adolescent Medicine, Seattle Children's Hospital, Seattle, WA, USA Center for Child Health, Behavior and Development, Seattle Children's Research Institute, Seattle, WA, USA sara.chrisman@seattlechildrens.org.
authors.forename: Sara P D
authors.initials: SP
authors.lastname: Chrisman
authors.affiliation: Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, USA Neurosurgery, University of Washington, Seattle, WA, USA.
authors.forename: Christine L
authors.initials: CL
authors.lastname: Mac Donald
authors.affiliation: Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, USA Radiology, Seattle Children's Hospital, Seattle, WA, USA Center for Clinical and Translational Research, Seattle Children's Research Institute, Seattle, WA, USA.
authors.forename: Seth
authors.initials: S
authors.lastname: Friedman
authors.affiliation: Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, USA Neuroradiology, University of Washington, Seattle, WA, USA.
authors.forename: Jalal
authors.initials: J
authors.lastname: Andre
authors.affiliation: Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, USA Epidemiology, University of Washington, Seattle, WA, USA.
authors.forename: Ali
authors.initials: A
authors.lastname: Rowhani-Rahbar
authors.affiliation: Center for Child Health, Behavior and Development, Seattle Children's Research Institute, Seattle, WA, USA.
authors.forename: Sara
authors.initials: S
authors.lastname: Drescher
authors.affiliation: Center for Child Health, Behavior and Development, Seattle Children's Research Institute, Seattle, WA, USA.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Stein
authors.affiliation: Center for Child Health, Behavior and Development, Seattle Children's Research Institute, Seattle, WA, USA.
authors.forename: Matthew
authors.initials: M
authors.lastname: Holm
authors.affiliation: Neurosurgery, University of Washington, Seattle, WA, USA.
authors.forename: Nicole
authors.initials: N
authors.lastname: Evans
authors.affiliation: Radiology, Seattle Children's Hospital, Seattle, WA, USA.
authors.forename: Andrew V
authors.initials: AV
authors.lastname: Poliakov
authors.affiliation: Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, USA Applied Biomechanics Laboratory, University of Washington, Seattle, WA, USA.
authors.forename: Randal P
authors.initials: RP
authors.lastname: Ching
authors.affiliation: Center for Child Health, Behavior and Development, Seattle Children's Research Institute, Seattle, WA, USA.
authors.forename: Christina C
authors.initials: CC
authors.lastname: Schwien
authors.affiliation: Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, USA Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA.
authors.forename: Monica S
authors.initials: MS
authors.lastname: Vavilala
authors.affiliation: Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, USA Center for Child Health, Behavior and Development, Seattle Children's Research Institute, Seattle, WA, USA.
authors.forename: Frederick P
authors.initials: FP
authors.lastname: Rivara
mesh_terms: D001265:Athletic Injuries / Q000453:epidemiology / Q000503:physiopathology; D001924:Brain Concussion / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology; D002648:Child; D006259:Craniocerebral Trauma / Q000453:epidemiology / Q000209:etiology* / Q000503:physiopathology; D005260:Female; D006801:Humans; D007702:Kinetocardiography; D008297:Male; D009483:Neuropsychological Tests; D011446:Prospective Studies; D012916:Soccer
keywords: adolescent; child; concussion; heading; soccer; sport