| Autor: |
Reed, William F., Feldman, Kenneth W., Weiss, Avery H., Tencer, Alan F. |
| Předmět: |
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| Zdroj: |
Archives of Pediatrics & Adolescent Medicine; Apr2002, Vol. 156 Issue 4, p337, 4p, 4 Black and White Photographs |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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