Brain ConcussionFootballAthletic InjuriesSoccerHockeySports EquipmentHead Protective DevicesAthletesSports MedicineMouth ProtectorsPost-Concussion SyndromeHead Injuries, ClosedBrain Injury, ChronicCraniocerebral TraumaUnconsciousnessBoxingTrauma Severity IndicesSprains and StrainsNeck InjuriesAccelerationInjury Severity ScoreSportsContusionsLeg InjuriesBrain InjuriesAthletic PerformanceNeuropsychological TestsWarm-Up ExerciseDiagnosis, Computer-AssistedMartial ArtsResearch ReportDizzinessWrestlingAnkle InjuriesTelemetryUniversitiesParaguayBiomechanical PhenomenaDoping in SportsCognition DisordersDiffuse Axonal InjurySchoolsIncidenceBasketballPhysical Education and TrainingBlast InjuriesUnited StatesRisk FactorsDiagnostic Techniques, NeurologicalSpinal InjuriesAmnesiaSkatingAcademies and Institutes