Along with the ever growing awareness among the scientific community and the general public that concussion is a serious health care issue at all levels of sport, with potentially devastating long term health effects, the number of concussion surveillance clinical monitoring programs has significantly increased internationally over the past 10–15 years. An effective concussion program (a “best practice” model) is clinically prudent and evidence-based, one that is an interdisciplinary model involving health professionals who manage, educate, and provide psychosocial support to athletes. The integration of neuropsychological assessment is a component of many present day programs, and therefore, the neuropsychologist is an integral member of the concussion management team. The University of Toronto Concussion Program, operational since 1999, integrates best practices and current evidence into a working model of concussion management for university athletes. The model uses an interdisciplinary approach to monitor and assess athletes with concussions, as well as to educate its athletes, coaches, and administrators. A research component is also integral to the program.
Search Results
A Model of Current Best Practice for Managing Concussion in University Athletes: The University of Toronto Approach
Paul Comper, Michael Hutchison, Doug Richards, and Lynda Mainwaring
Examining Emotional Sequelae of Sport Concussion
Lynda Mainwaring, Michael Hutchison, Paul Camper, and Doug Richards
Depression, fatigue, irritability, confusion, and general mood disturbance are frequently reported after cerebral concussion in sport. Recent trends in research point to the importance of examining postconcussive emotional disturbances more thoroughly, empirically, and clinically. An overview of the complexity of human emotion and its study is provided herein, followed by a review of emotional correlates identified in the existing sparse literature. The significance and clinical implications of identifying emotional correlates of concussion in sport and athletics are discussed.
Sport as Laboratory: Lessons Learned From Baseline and Postconcussion Assessment Research
Lynda Mainwaring, Paul Comper, Michael Hutchison, and Doug Richards
Knowledge and awareness of sport concussion has been forwarded by research modeled on the neuropsychological testing paradigm associated with Barth’s “sport as laboratory” assessment model. The purpose of this paper is to elucidate lessons learned from that research. Key considerations for planning and implementing large-scale studies of concussion in sport while making adequate provision for the clinical needs of concussed athletes are reviewed. Toward that end, logistical, methodological, and ethical considerations are discussed within the context of research conducted in a university setting. Topics addressed include culture of sport and risk; research planning and design; communication with strategic partners; defining injury; choosing a test battery; data management, outcomes, and analyses; dissemination of results; and finally, clinical and ethical implications that may arise during the research enterprise. The paper concludes with a summary of the main lessons learned and directions for future research.
Concussion History and Time Since Concussion Do not Influence Static and Dynamic Balance in Collegiate Athletes
Eric D. Merritt, Cathleen N. Brown, Robin M. Queen, Kathy J. Simpson, and Julianne D. Schmidt
Context:
Dynamic balance deficits exist following a concussion, sometimes years after injury. However, clinicians lack practical tools for assessing dynamic balance.
Objectives:
To determine if there are significant differences in static and dynamic balance performance between individuals with and without a history of concussion.
Design:
Cross sectional.
Setting:
Clinical research laboratory.
Patients or Other Participants:
45 collegiate student-athletes with a history of concussion (23 males, 22 females; age = 20.0 ± 1.4 y; height = 175.8 ± 11.6 cm; mass = 76.4 ± 19.2 kg) and 45 matched controls with no history of concussion (23 males, 22 females; age = 20.0 ± 1.3 y; height = 178.8 ± 13.2 cm; mass = 75.7 ± 18.2 kg).
Interventions:
Participants completed a static (Balance Error Scoring System) and dynamic (Y Balance Test-Lower Quarter) balance assessment.
Main Outcome Measures:
A composite score was calculated from the mean normalized Y Balance Test-Lower Quarter reach distances. Firm, foam, and overall errors were counted during the Balance Error Scoring System by a single reliable rater. One-way ANOVAs were used to compare balance performance between groups. Pearson’s correlations were performed to determine the relationship between the time since the most recent concussion and balance performance. A Bonferonni adjusted a priori α < 0.025 was used for all analyses.
Results:
Static and dynamic balance performance did not significantly differ between groups. No significant correlation was found between the time since the most recent concussion and balance performance.
Conclusions:
Collegiate athletes with a history of concussion do not present with static or dynamic balance deficits when measured using clinical assessments. More research is needed to determine whether the Y Balance Test-Lower Quarter is sensitive to acute balance deficits following concussion.
Reliability and Minimal Detectable Change for a Smartphone-Based Motor-Cognitive Assessment: Implications for Concussion Management
David R. Howell, Corrine N. Seehusen, Mathew J. Wingerson, Julie C. Wilson, Robert C. Lynall, and Vipul Lugade
Our purpose was to investigate the reliability and minimal detectable change characteristics of a smartphone-based assessment of single- and dual-task gait and cognitive performance. Uninjured adolescent athletes (n = 17; mean age = 16.6, SD = 1.3 y; 47% female) completed assessments initially and again 4 weeks later. The authors collected data via an automated smartphone-based application while participants completed a series of tasks under (1) single-task cognitive, (2) single-task gait, and (3) dual-task cognitive-gait conditions. The cognitive task was a series of continuous auditory Stroop cues. Average gait speed was consistent between testing sessions in single-task (0.98, SD = 0.21 vs 0.96, SD = 0.19 m/s; P = .60; r = .89) and dual-task (0.92, SD = 0.22 vs 0.89, SD = 0.22 m/s; P = .37; r = .88) conditions. Response accuracy was moderately consistent between assessments in single-task standing (82.3% accurate, SD = 17.9% vs 84.6% accurate, SD = 20.1%; P = .64; r = .52) and dual-task gait (89.4% accurate, SD = 15.9% vs 85.8% accurate, SD = 20.2%; P = .23; r = .81) conditions. Our results indicate automated motor-cognitive dual-task outcomes obtained within a smartphone-based assessment are consistent across a 1-month period. Further research is required to understand how this assessment performs in the setting of sport-related concussion. Given the relative reliability of values obtained, a smartphone-based evaluation may be considered for use to evaluate changes across time among adolescents, postconcussion.
A Pediatric Perspective on Sport-Related Concussion
Tamara C. Valovich McLeod, Megan N. Houston, and Cailee E. Welch
Concussions resulting from sports and recreational activities are a significant concern in the pediatric population. The number of children and adolescents sustaining sport-related concussions is increasing and, as a result, legislation has been passed in all 50 states to ensure appropriate recognition and referral of pediatric athletes following concussion. The developing brain may make the diagnosis, assessment, and management of concussion more challenging for health care providers and requires the use of specific age-appropriate assessment tools. Concussion management must also include considerations for cognitive and physical rest, a collaborative concussion management team that includes medical and school personnel, and more conservative stepwise progressions for returning to school and to physical activity.
Psychology of Sport Concussions
Diane M. Wiese-Bjornstal, Andrew C. White, Hayley C. Russell, and Aynsley M. Smith
The psychology of sport concussions consists of psychological, psychiatric, and psychosocial factors that contribute to sport concussion risks, consequences, and outcomes. The purpose of this paper is to present a sport concussion-adapted version of the integrated model of psychological response to sport injury and rehabilitation (Wiese-Bjornstal, Smith, Shaffer, & Morrey, 1998) as a framework for understanding the roles of psychological, psychiatric, and psychosocial factors in sport concussions. Elements of this model include preinjury psychological risk factors, postinjury psychological response and rehabilitation processes, and postinjury psychological care components. Mapped onto each element of this model are findings from the research literature through a narrative review process. An important caveat is that the subjective nature of concussion diagnoses presents limitations in these findings. Future research should examine psychological contributors to concussion risk, influences of physical factors on psychological symptoms and responses, and efficacy of psychological treatments utilizing theory-driven approaches.
Effect of Administration Method on Near Point of Convergence Scores in a Healthy, Active, Young Adult Population
Jacqueline Phillips, Kelly Cheever, Jamie McKeon, and Ryan Tierney
mild traumatic brain injury patients. 2 , 7 , 8 More recently, it has also been reported to be receded in sport-related concussion patients. 3 , 9 – 11 Although an abnormally receded NPC measurement has been identified as a clinical sign of sport-related concussion, there have been conflicting
Sleep Dysfunction in Adolescents With Prolonged Postconcussion Symptoms: A Reciprocal Coupling of Traumatic Brain Injury and Sleep-Related Problems
Carter Hughes, Kevin Hunt, Brian Cox, John Raybon, and Rebecca M. Lopez
Clinical Scenario While not often catastrophic, concussions or mild traumatic brain injuries are becoming more common in young athletes. 1 It is estimated that between 1.1 and 1.9 million concussions occur in athletes 18 years old or younger each year. 1 Due to a number of neurometabolic
Current Evidence in Management of Concussion Baseline Testing in ADHD and Learning Difficulties Patients: A Critically Appraised Topic
Mindi Fisher, Ryan Tierney, Anne Russ, and Jamie Mansell
Medline. The search terms used were: • Patient: concussion, mild traumatic brain injury, mTBI • Intervention: ADHD, attention deficit hyperactivity disorder, learning difficulties or disabilities, academic difficulties, dyslexia, dysgraphia, dyscalculia • Outcome: Severity score, symptom score, invalid