HEAD IMPACT FREQUENCY IN YOUTH AMERICAN FOOTBALL, AGES 9-13
Autor: | Cobb, Bryan R.; Rowson, Steven; Duma, Stefan M. |
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Sprache: | Englisch |
Veröffentlicht: |
2014 |
Quelle: | ISBS - Conference Proceedings Archive (International Society of Biomechanics in Sports) |
Online Zugang: |
https://ojs.ub.uni-konstanz.de/cpa/article/view/5933/5416 https://ojs.ub.uni-konstanz.de/cpa/article/view/5933 https://ojs.ub.uni-konstanz.de/cpa/article/view/5933 |
Erfassungsnummer: | ftjisbscpa:oai:ojs.ojs.ub.uni-konstanz.de:article/5933 |
Zusammenfassung
The objective of this study was to quantify head impact frequency in youth American football players, ages 9-13. Kinematic data from head impacts were collected from 25 players on two teams (11.7 ± 1.2 years) using a helmet-mounted accelerometer system. A total of 4432 head impacts were recorded, including 1800 during 265 practice sessions and 2632 during 175 game sessions. Most peak linear acceleration magnitudes were less than 20 g in practices (60%) and games (55%). For impacts greater than or equal to 60 g, players sustained 122% more in games than practices. Both teams played in leagues that limited full-contact practice time, which likely contributed to lower impact frequencies in practices. Interventions to further reduce head impact frequency in youth football should include measures which affect in-game exposure.