INCREASED RISK OF SPORTS INJURIES AMONG MEDICAL STUDENTS: CROSS-SECTIONAL STUDY

ABSTRACT Objective: To evaluate the nature and rate of sports injuries in medical students, as well as the risk factors at these events. Methods: All student-athletes (218) from a Medical School, integrated in at least one of the six team sport modalities (soccer, rugby, indoor soccer, handball, basketball, and volleyball) in 2017, were included. Injuries affecting their performance, regardless of time loss, were included. Athlete-exposure (A-E) was defined as one student-athlete participating in one practice or game. Results: Injury rates were significantly higher in junior medical students (1st - 3rd year) (7.58 per 1000 A-E, 95%CI = 6.11-9.06) than in senior medical students (4th - 6th year) (4.49 per 1000 A-E, 95%CI = 3.26-5.73) (p < 0.001). Multi-sports athletes had higher injury rates (10.69 per 1000 A-E, 95%CI = 8.22-13.17) than single-sport athletes (4.49 per 1000 A-E, 95%CI = 3.51-5.47) (p = 0.002). More than 60% of reported injuries occurred in the lower limbs and the mechanism that accounted for most injuries in games was player contact (51%); whereas in practice, it was non-contact (53%). Conclusion: Junior medical students present a higher injury rate than seniors. Medical students practicing more than one modality had a higher injury rate than those involved in just one sport modality. Level of Evidence IV, Cross-Sectional Study.

摘要
研究目的：评估医学生运动损伤的类型、发生率，以及此类损伤的危险因素。
研究方法：本研究纳入2017年某医学院校的全部218名学生运动员，他们至少参与了足球、橄榄球、室内足球、手球、篮球及排球这6种团队运动项目中的至少一项。本研究纳入所有影响运动员运动表现的损伤，无论是否造成伤停时间。运动员暴露量（Athlete-Exposure, A-E）定义为1名学生运动员参与1次训练或1场比赛。
研究结果：低年级医学生（1~3年级）的损伤发生率为每1000个A-E 7.58（95%置信区间：6.11~9.06），显著高于高年级医学生（4~6年级，每1000个A-E 4.49，95%置信区间：3.26~5.73）（p<0.001）。参与多项运动的运动员损伤发生率为每1000个A-E 10.69（95%置信区间：8.22~13.17），高于仅参与单项运动的运动员（每1000个A-E 4.49，95%置信区间：3.51~5.47）（p=0.002）。报告的损伤中超过60%发生于下肢；比赛中多数损伤的致伤机制为运动员身体接触（占比51%），而训练中则以非接触性损伤为主（占比53%）。
研究结论：低年级医学生的运动损伤发生率高于高年级学生；参与多种运动项目的医学生损伤发生率高于仅参与单项运动的学生。本研究证据等级为IV级，属于横断面研究（Cross-Sectional Study）。