BACKGROUND: Concussions are frequent injuries sustained by collegiate athletes. They are often underdiagnosed and may lack adequate treatment due to a lack of standardization in diagnosis and return to play guidelines. Current research suggests that there is an increased risk of subsequent injury after returning to play among previously concussed athletes. Recurrent injuries have a detrimental impact on athletic careers and often result in early retirement from competitive sports. The relationship between sports-related concussions (SRCs) and subsequent musculoskeletal injuries in the NCAA reveals a lack of consensus on return to play (RTP) guidelines and management. Clinical guidelines are evolving with the progressive understanding of SRC pathophysiology. LITERATURE REVIEW FINDINGS: Previous research has found an association between concussion and subsequent acute musculoskeletal injuries, specifically lower extremity injuries. In addition, sports-specific athlete cohorts, such as soccer and football players, have been shown to have a high incidence of SRC. The exact mechanism of action linking SRC and subsequent acute injury is currently unknown. There are numerous etiologic possibilities offered in the literature, including gait alterations, neuromuscular control deficits, and impaired reaction time. However, further research is required to elucidate this relationship—in our review of the current literature we were able to find no studies evaluating the risk of both upper and lower extremity injury following SRC after returning to play in the NCAA population. PROPOSED PROJECT: The goal of the proposed retrospective cohort study of BU athletes is to evaluate the impact of concussion history on recurrent injury after returning to sports. Study inclusion criteria will consist of BU athletes diagnosed with concussions at a single NCAA Division I institution. This cohort will be collected from NCAA injury database and electronic medical records will be matched with controls who have not sustained concussions over the same period. CONCLUSIONS: History of concussion is associated with increased risk of recurrent injury in athletes, specifically at the collegiate level. Further work must be done at all levels of athletics to standardize return to play guidelines to prevent this increased risk of subsequent injury. SIGNIFICANCE: This study will help determine whether a relationship exists between concussion and subsequent sports-related injuries. This information may allow for closer monitoring of return to play and treatment of concussions. Additionally, it may encourage further developments to diagnostic criteria, education, and injury prevention.

L’anxiété de reblessure, cette appréhension à l’idée de se reblesser, fait partie des réactions psychologiques survenant suite à une blessure. La littérature scientifique n’a pour le moment fait état de cette dernière uniquement comme un facteur négatif qu’il faut prendre en charge. En effet, étudiée exclusivement chez les sportifs, elle semble être un obstacle lors de la rééducation et du retour au sport. Nous souhaitons adopter un autre point de vue et considérer le caractère adaptatif de cette émotion, en nous basant sur le caractère protecteur que nous connaissons de l’anxiété et ses tendances à l’action (l’évitement et l’inhibition). À travers cet ensemble de recherches, nous avons donc exploré le caractère bénéfique de l’anxiété de reblessure dans une population sportive, mais également non-sportive.Le document se déroule en 5 chapitres. Au cours du premier chapitre, nous faisons état de la littérature sur l’anxiété de reblessure. Puis dans un second chapitre, nous développons une mesure explicite de l’anxiété de reblessure. Un troisième chapitre explore les liens qu’entretiennent l’anxiété de reblessure et la prise de risque alors qu’un quatrième chapitre porte sur la mesure implicite de l’anxiété de reblessure et ses tendances automatiques à l’action. Enfin, un cinquième et dernier chapitre dans lequel nous discutons des résultats et de la prise en charge de l’anxiété de reblessure. / Reinjury anxiety is a psychological reaction arising further to an injury. Currently, the scientific literature considers reinjury anxiety solely as a negativ emotion you have to deal with and make disappear. Fact is, reinjury anxiety seems to be an hindrance to reeducation and a potential trouble when restarting a physical activity. We would like to adopt another point of view and consider the adaptive aspect of this emotion. We know anxiety, as a defensive reaction, makes you prone to action (avoidance and inhibition) and therefore could also be used as a positive incentive. Through our researches, we explored the positive aspects and mechanisms of reinjury anxiety on sportsman and non-sportsman people.The file is divided into 5 chapters. The first chapter is an overview of the academic work concerning reinjury anxiety. In a second chapter, we develop an explicit measure to reinjury anxiety. Chapter three explores the connections between reinjury anxiety and risk taking. The fourth chapter is related to the implicit measure of reinjury anxiety and its action readiness. Finally, in the fifth and last chapter, we discuss the results and the psychological treatment for reinjury anxiety.