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PRIMARY OBJECTIVE Sports-related concussion is a frequently-occurring, serious neurological event that can produce a spectrum of potentially debilitating primary and secondary problems. Many investigators-particularly neuropsychologists-have focused their efforts on identifying cognitive changes that accompany such injuries. As such, the present review(More)
OBJECTIVE To determine if athletes with concussion and those with minor musculoskeletal injuries experienced differential emotional response to injury. DESIGN A prospective longitudinal cohort study. SETTING University of Toronto, Ontario, Canada. PARTICIPANTS Thirty-four injured athletes from Canadian Interuniversity Sport (CIS) and 19 healthy,(More)
Functional assessment of the hand typically involves evaluation of proficiency using a test battery rather than identifying the range of hand skills available to a client. Establishing a clients hand function by reference to the movement repertoire of his or her fully-functioning hand offers numerous benefits for clinicians and researchers. A functional(More)
OBJECTIVE To determine the association between the apolipoprotein epsilon 4 allele and concussion. We hypothesized that apolipoprotein epsilon 4 carriers may be more likely to sustain a concussion. DESIGN Prospective cohort study. SETTING University of Toronto varsity athletics. PARTICIPANTS Included 318 of 822 collegiate student athletes who(More)
BACKGROUND Safe return-to-play decisions after concussion can be challenging for sports medicine specialists. Neuropsychological testing is recommended to objectively measure concussion-related cognitive impairments. PURPOSE The objective of this study was to measure cognitive functioning among 3 specific athletic groups: (1) athletes with no injuries (n(More)
PRIMARY OBJECTIVES To ascertain and compare the nature of emotional response of athletes to concussion and to anterior cruciate ligament (ACL) injury. RESEARCH DESIGN Pre-injury, post-injury and longitudinal emotional functioning of athletes with concussion (n = 16), athletes with ACL injuries (n = 7) and uninjured athletes (n = 28) were compared in a(More)
BACKGROUND Sport-related concussions are associated with a range of physical, cognitive, and behavioral disturbances that are highly variable across individuals. Much remains unknown about the effects of sport concussion, and changes in markers of psychological and physiological stress over the recovery timeline. OBJECTIVE To examine psychological (mood,(More)
OBJECTIVE To assess heart rate variability (HRV) in athletes with concussion across three phases of recovery. DESIGN A prospective matched control group design included the collection of HRV and symptoms measured by the Rivermead Post-Concussion Questionnaire. These measures were taken at 3 phases of recovery [(1) symptomatic; (2). asymptomatic; and (3)(More)
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