Persistent motor/cognitive alterations and increased prevalence of Alzheimer's disease are known consequences of recurrent sports concussions, the most prevalent cause of mild traumatic brain injury (TBI) among youth. Animal models of TBI demonstrated that impaired learning was related to persistent synaptic plasticity suppression in the form of long-term potentiation (LTP) and depression (LTD)...

Head injury is a major public health concern due to the high incidence and the accompanying morbidity and mortality. In the USA, head injuries are a contributing factor to one third (30.5%) of all injury-related deaths and result in 52 000 deaths, 275 000 hospitalisations and 1.4 million emergency department visits each year. While fully 75% of head injuries are classified as mild traumatic bra...

The incidence of injury in combat sports has not been adequately reported although it is important to identify the nature and frequency of injuries prior to the implementation of prevention programs. This study compared injury rates treated in Hospital Emergency Departments between different combat sports of boxing, wrestling, and martial arts. A secondary objective described anatomic region an...

OBJECT Pediatric sports-related concussions are a growing public health concern. The factors that determine injury severity and time to recovery following these concussions are poorly understood. Previous studies suggest that initial symptom severity and diagnosis of attention deficit hyperactivity disorder (ADHD) are predictors of prolonged recovery (> 28 days) after pediatric sports-related c...

Sports-related concussions, which have become more prevalent in the past decade, are an extremely common phenomenon in organized athletics and create a substantial economic burden on the health care system. Furthermore, they can have devastating impacts on the athletic careers and long-term health of athletes. However, concussion evaluation remains a controversy with respect to diagnosis, manag...

tation Mediedicine, and of Washing, Seattle, WA on Program, Seattle SeSeattle, WA. .H.; e-mail: In October 2006, Zackery Lystedt, an outstanding 13-year-old athlete, was playing in h school football game. With 3 plays remaining at the end of the second quarter, Zack s head on the ground and lay writhing on the field holding his hands to his helmet in distress. An injury time out was called, and...

BACKGROUND Ice hockey is a fast-paced collision sport that entails both intentional (ie, body checking) and incidental contact that may involve the head. The objective of this study was to determine the incidence of concussions in relation to games/practices and age among competition-level youth ice hockey players (ages 12-18 years). METHODS Participants included 397 youth ice hockey players ...

OBJECTIVE The purpose of this review is to examine the evidence for determining the lowest threshold for diagnosing a sport-related concussion. DATA SOURCES MEDLINE, CINAHL, EMBASE, Mosby's Index, PsycEXTRA, PsycINFO and Scopus. Key words included sports concussion, concussion assessment, diagnosis, concussion symptoms, onfield assessment and sports-related traumatic brain injury. RESULTS T...

OBJECTIVES This study sought to: 1) estimate the penetrance (in terms of youth coaches being aware of them) of the CDC "Heads Up!" guidelines, 2) determine whether these guidelines changed the coaches' practice, and 3) understand whether these guidelines resulted in a perceived decrease in the number of concussions. METHODS This was a cross-sectional survey of pediatric sports coaches in the ...