Collision avoidance behaviors of recently concussed female rugby players with an approaching person

Powers, Kaley C.; Pfaff, Lana M.; Cinelli, Michael E.

doi:10.1016/j.jbiomech.2021.110776

Cited by 1 publication

(2 citation statements)

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“…Collision risk is a key variable, so it is interesting that the concussion group had a similar number of total collisions to the control group, given that concussion leads to well-documented impairments in key cognitive and motor functions required for driving. 13,17,24 We observed other driving behaviors consistent with increased likelihood of motor vehicle crash (e.g. greater SDLP, more lane excursions), but further research is needed to determine whether on-road collision risk is elevated after concussion.…”

Section: Clinical Implications At the Acute Time Pointmentioning

confidence: 89%

“…Previous studies examining overground walking showed that athletes with a history of concussion responded at a delay to avoid a walking collision. 17,24 Temporal outcomes that reflect successful collision avoidance, such as reaction time or time to collision, may be more sensitive to more subtle impairment levels. 13,17,24 Given the differences noted between our previous work and the present study, future studies should consider drive duration and driving endurance during assessment.…”

Section: Discussionmentioning

confidence: 99%

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Longitudinal Assessment of Postconcussion Driving: Evidence of Acute Driving Impairment

et al. 2023

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Background: Current medical practices and recommendations largely ignore the safety of postconcussion driving, even though commonly used measures of neurocognition, balance, and vestibulo-ocular function show impairment. Purpose: To compare simulated driving between patients with concussion and controls throughout concussion recovery using a case-control design. Study Design: Cohort study; Level of evidence, 2. Methods: A total of 26 concussed and 23 control Division I collegiate athletes completed a driving simulation assessment at 3 time points (within 72 hours, asymptomatic, and return to sport). Cumulative driving simulation outcome variables included total number of collisions, speed exceedances, stop signs missed, lane excursions, total drive time, percentage of time over the speed limit, and percentage of time out of the lane. The mean speed, standard deviation of speed (SDS), lateral lane position, and standard deviation of lateral lane position (SDLP) were examined for each of the 11 drive segments. Outcomes were compared using generalized linear mixed models with random intercepts by participant with Poisson or normal distributions. Results: Within 72 hours of injury, the concussion group committed more lane excursions (median difference, 2; P = .003), exhibited greater SDS while avoiding a child pedestrian crossing the road (Cohen d = 0.73; P = .011), drove ~7 inches (~18 cm) closer to the centerline during a residential left curve ( d = 0.90; P = .015), and had greater SDLP while navigating around a car crash compared with controls ( d = 0.72; P = .016). When asymptomatic, the concussion group committed fewer speed exceedances (median difference, 2; P = .002) and had lower SDLP while navigating through a traffic light compared with controls ( d = 0.60; P = .045). No differences were evident at return to sport. Groups did not differ in total collisions at any time point. Conclusion: The concussion group showed more impaired driving patterns within 72 hours of injury, drove more conservatively once asymptomatic, and had similar driving performance at the time they returned fully to sport. Clinicians should consider these findings when discussing driving with patients acutely after concussion. Further research is needed to determine whether on-road collision risk is elevated after concussion.

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Section: Clinical Implications At the Acute Time Pointmentioning

confidence: 89%