Object. Concussive head injuries have received much attention in the medical and public arenas, as concerns have been raised about the potential shortand long-term consequences of injuries sustained in sports and other activities. While many student athletes have required evaluation after concussion, the exact definition of concussion has varied among disciplines and over time. The authors used...

Sports-related concussions result in 300,000 brain injuries in the United States each year. We conducted a study utilizing an in-helmet system that measures and records linear head accelerations to analyze head impacts in collegiate football. The Head Impact Telemetry (HIT) System is an in-helmet system with six spring-mounted accelerometers and an antenna that transmits data via radio frequenc...

1 P d s H n t “ t s r g a U l i t i a g The National Football League (NFL) Commissioner Roger Goodell appointed a new medical committee to advise him and the NFL on the issue of traumatic brain injury (TBI) in 010, thereby replacing the former Mild Traumatic Brain Injury ommittee (MTBI) of the NFL that was active from 1994 to 2009. As oncern for safety in sports has grown, with increased attent...

Concussions are the most frequent battle injury sustained in Afghanistan. The Concussion Restoration Care Center provides multidisciplinary care to concussed service members in theater. The Concussion Restoration Care Center has managed over 500 concussions, the majority being from improvised explosive device (IED) blasts. Syncope following a concussion without a loss of consciousness is rarely...

OBJECTIVES To examine the longitudinal media reported rate of concussions in the National Hockey League (NHL) over the period 1986-87 to 2001-02. METHODS All injury reports published in the weekly sports newspaper The Hockey News for the 16 seasons 1986-87 through 2001-02 were reviewed for reported concussions. The Hockey News reports are based on weekly injury reports released by the NHL, wh...

Mild traumatic brain injury, commonly known as concussion, occurs frequently in children while playing sports. Whereas the negative impact of sport-related concussions on cognitive function is well known, the effects of concussions on sensorimotor function, especially in children, remain largely unknown. In this observational/case study, we investigated the association between neurocognitive fu...

ulation: analysis of reports to the Danish Medicines Agency over a decade. In his article on concussion in youth hockey, " Johnson writes that " Crosby has a lot of company in the NHL [National Hockey League], where the number of concussions doubled in the 2010/11 season, " 1 citing a reference to www.nhl.com. 2 This is in error. The cited article does not say that. In fact, NHL Commissioner Ga...

CONTEXT The known detrimental effects of sport concussions on motor system function include balance problems, slowed motor execution, and abnormal motor cortex excitability. OBJECTIVE To assess whether these concussion-related alterations of motor system function are still evident in collegiate football players who sustained concussions but returned to competition more than 9 months before te...