Publications by authors named "J P Leddy"

Objective: Sport-related concussion (SRC) affects cognitive and oculomotor function. We evaluated recovery from SRC in athletes with cognitive symptoms and/or oculomotor impairments who were prescribed early aerobic exercise treatment.

Design: Secondary exploratory analysis of a randomized controlled trial.

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Purpose: To compare clinical characteristics in patients with concussions sustained by prevalent, but understudied, mechanisms (work-related concussion [WRC] and motor vehicle collision [MVC]-related concussion) to sport-related concussion (SRC).

Methods: Retrospective review of 281 electronic medical records from an outpatient concussion clinic. Time since injury (days), duration of care (days), amount of care (number of visits), and perceived health (Short-Form 12) were collected.

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Background/objective: Assessing Orthostatic Intolerance (OI, symptoms upon standing from supine) is recommended in athletes with sport-related concussions (SRCs), as this is caused by impairments in the cardiovascular autonomic nervous system (cANS). Early Exercise Intolerance (Early EI, symptoms on light physical exertion) is also due to impairments in the cANS but is difficult to incorporate into outpatient clinical practice (cost of personnel, time, equipment). The purpose of this study was to determine if we could use OI to screen for Early EI, as well as understand differences between adolescents who do and do not report OI.

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Article Synopsis
  • The study investigates how sport-related concussions (SRC) affect the cardiovascular autonomic nervous system (ANS) in adolescents, comparing those with SRC to control participants early after injury and after recovery.
  • No significant differences in heart rate variability (HRV), systolic blood pressure variability (SBPV), or baroreflex sensitivity (BRS) were observed between SRC athletes and controls post-injury, indicating that ANS function remains unchanged acutely after concussion.
  • Post-recovery, SRC athletes exhibited higher low frequency SBPV, and certain correlations were found between symptom severity and ANS activity; however, these differences were not significant enough to provide strong diagnostic or prognostic value.
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Article Synopsis
  • A study investigated the impact of aerobic exercise on reducing musculoskeletal (MSK) injuries in adolescent athletes recovering from sport-related concussions (SRC) within 10 days post-injury.
  • Results showed that only 5.3% of those who did aerobic exercise experienced MSK injuries, compared to 24% of those who did stretching exercises.
  • The findings suggest that aerobic exercise may aid recovery and reduce the risk of injury, potentially by enhancing various physiological functions post-concussion.
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