TY  - JOUR
PY  - 1972//
TI  - Effect of long-duration impact on head
JO  - Proceedings: Stapp Car Crash Conference
A1  - Hodgson, Volgt R.
A1  - Thomas, L. Murray
SP  - 
EP  - 
VL  - 16
IS  - 
N2  - Impacts have been analyzed in terms of degree of injury, head injury criterion (HIC), and average acceleration as a function of time for frontal impacts against the following surfaces:    1. Rigid flat surface-fractured cadaver skull.    2. Astroturf-head drop of football-helmeted cadaver.    3. Windshield penetrating impact of a dummy.    4. Airbag-dynamic test by human volunteers.    It is concluded that the linear acceleration/time concussion tolerance curve may not exist and that only impacts against relatively stiff surfaces producing impulses with short rise times can be critical. The authors hypothesize that if a head impact does not contain a critical HIC interval of less than 0.015 s, it should be considered safe as far as cerebral concussion is concerned.    Keywords: American football;  <p />
LA  - en
SN  - 0585-086X
UR  - http://dx.doi.org/10.4271/720956
ID  - ref1
ER  -