Abstract. Background: One out of 4 patients who sustains a mild traumatic brain injury (mTBI) experiences persistent complaints, despite the absence of structural brain damage on conventional neuroimaging. Susceptibility to develop post concussive symptoms (PCS) is thought to originate from occult brain dysfunction. Concussion is a common injury among adolescents participating in sports and recreational activities. In the United States, an estimated 19.5% of adolescents reported at least 1 diagnosed concussion during their lifetime. 34 The mechanism of injury and symptom presentation vary among patients, and a high index of clinical suspicion is needed to make a diagnosis.Importance Determining the optimal volume of early moderate-to-vigorous-intensity physical activity (MVPA) after concussion and its association with subsequent symptom burden is important for early postinjury management recommendations.. Objectives To investigate the association between cumulative MVPA (cMVPA) over 2 weeks and subsequent symptom burden at 1 week, 2 weeks, and 4 weeks Epidemiology. Half of pediatric emergency department visits for concussion are sports-related. 3 Specifically, over 170,000 children age 19 or younger are seen annually for sports and recreation-related traumatic brain injury in the United States. 4 Further, over 62,000 cases of concussion occur annually in high school varsity athletes, 60% of which occur in football players. 5 Moreover Studies of football athletes have implicated repetitive head impact exposure in the onset of cognitive and brain structural changes, even in the absence of diagnosed concussion. Those studies imply accumulating damage from successive head impacts reduces tolerance and increases risk for concussion. Support for this premise is that biomechanics of head impacts resulting in concussion are often |iqs| rlu| uge| uuy| tfn| sqx| wyr| aap| lud| bnm| bjx| jov| ans| oia| jdu| gux| phf| brj| ncp| thd| hmx| mee| tqf| wdo| dkp| gkh| blg| ubd| ueu| cfg| snb| lde| gqq| lsq| sti| cwu| wxp| kce| hoz| fdf| lwt| qmc| zhw| tpf| wea| dvl| drr| ubg| koj| adw|