ObjectiveThe aim of our study is to assess the rate of concussion occurring while engaging in nontraditional sports such as Quidditch, and the effects that injury during a novelty sport may have on concussion detection when compared to more traditional sports.BackgroundConcussions, once dismissed as nonconsequential, are rapidly attracting notice for acute and long-term health effects. Rates of recovery with repeated trauma is known to decrease with each occurrence. In novelty sports, regulation of concussions and proper return-to-play(RTP) protocol are not routinely enforced, resulting in repetitive injury to the detriment of players.Design/MethodsIRB approval was obtained prior to survey distribution to all players associated with Major League Quidditch (MLQ). Responses were recorded and analyzed.Results157 responses were received. 63% were male and 37% female with mean age 22.9. 146 (93%) respondents confirmed or denied quidditch-related head injury. 22 (15%) denied head injury and 124 (85%) indicated hitting their heads while participating in the sport. 19% of respondents indicated >10 head injuries. 67 (54%) reported suspected concussion with an additional 41 (33%) reporting formal diagnosis with at least one concussion. EMS reported 18 injuries at MLQ matches. 5 (27.8%) were preliminarily diagnosed with concussion. 3 had no further treatment, 1 RTP and 1 received basic care. 0 recieved formal neurologic evaluation. Players were also asked about head injuries sustained in non-quidditch activities for comparison. 43 (27%) reported having medically diagnosed concussions outside of quidditch. 53 (34%) reported at least one suspected concussion without formal diagnosis. 24 (15%) answered maybe.ConclusionsOur data supports that concussion is a significant burden in novelty sports such as quidditch. It is vital to recognize that with the rise of nontraditional sports, the prevalence of concussions in younger nontraditional athletes may be underreported and that concussion specialists must be cognizant of both traditional and novelty sports when evaluating long term effects of head trauma.
ObjectiveTo compare head kinematics measurements obtained from 6 different head impact sensors utilizing different methods of sensor-to-head fixation. DesignFree-drop impacts (total n = 54) were performed at 3.5 and 5.5 m/s onto to the front, back, side, and top of 2 elderly human cadaveric head-neck specimens: a helmeted (Riddell Revolution Speed) male specimen was dropped onto a NOCSAE testing pad; an un-helmeted female specimen was dropped onto a framed sample of field turf. The specimens were instrumented with an intracranial reference sensor surgically mounted at the approximate head center-of-mass by a rigidly-fixed custom standoff pad, an intra-oral test sensor rigidly fixed to the upper teeth/hard palate by a custom orthodontic appliance, and 4 commercially available head impact sensing systems: X-Patch, Vector mouth guard, HITS (helmeted condition only), and G-Force Tracker (affixed to helmet interior or head band depending on helmet status). Peak linear and rotational head accelerations (PLA and PRA) were compared between each sensor and the intracranial reference sensor using intraclass correlation coefficients (ICC [2, 1]). ResultsAgreement with reference PLA and PRA values differed between sensors, with the greatest agreement observed for the rigidly affixed intraoral sensor (ICC = 0.921, PLA; ICC = 0.810, PRA). Agreement for PLA and PRA, respectively, was: for X-Patch, ICC = 0.638, ICC = 0.155; for Vector mouth guard, ICC = 0.775, ICC = 0.480; for HITS, ICC = 0.662 (PLA only); for G-Force Tracker, ICC = 0.364 (PLA only).
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