Archives of Pediatrics and Adolescent Medicine · 2002 · 19 citations · 9 references
MedicineOphthalmologySports MedicinePediatric OphthalmologyPediatric Sports MedicineSports Injury PreventionRetinal TraumaYouth Athlete Injury PreventionYouth Sports Injury PreventionAccelerometer MonitoringRotational AccelerationSports-related Head InjurySports-related Ocular InjuryTraumatic Retinal HemorrhageYouth Soccer Injury Prevention
OBJECTIVES: To define forces of youth soccer ball heading (headers) and determine whether heading causes retinal hemorrhage. SETTING: Regional Children's Hospital, youth soccer camp. PATIENTS: Male and female soccer players, 13 to 16 years old, who regularly head soccer balls. MEASUREMENTS: Dilated retinal examination, after 2-week header diary, and accelerometer measurement of heading a lofted soccer ball. RESULTS: Twenty-one youth soccer players, averaging 79 headers in the prior 2 weeks, and 3 players who did not submit header diaries lacked retinal hemorrhage. Thirty control subjects also lacked retinal hemorrhage. Seven subjects heading the ball experienced linear cranial accelerations of 3.7 +/- 1.3g. Rotational accelerations were negligible. CONCLUSIONS: Headers, not associated with globe impact, are unlikely to cause retinal hemorrhage. Correctly executed headers did not cause significant rotational acceleration of the head, but incorrectly executed headers might.
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If nothing goes wrong, is everything all right? Interpreting zero numerators
J. A. Hanley · JAMA · 1983 · 1.1K citations
Ann‐Christine Duhaime, Thomas A. Gennarelli, Lawrence E. Thibault et al. · Journal of neurosurgery · 1987 · 715 citations
Medicine, Child Health, Pediatrics +14