A comparison of sub-concussive impact attenuating capabilities of ice hockey helmets with and without XRD foam.
J Sci Med Sport
; 27(10): 697-701, 2024 Oct.
Article
em En
| MEDLINE
| ID: mdl-39013696
ABSTRACT
OBJECTIVES:
To compare the impact attenuating capabilities between ice hockey helmets manufactured with and without XRD impact protection foam, worn with and without a XRD skullcap, at reducing sub-concussive head accelerations.DESIGN:
Quasi-experimental laboratory.METHODS:
Ice hockey helmets were fit onto a Hybrid III 50th Head Form Head and dropped 25 times onto the left temporal side for each condition XRD foam helmet, XRD foam helmet with XRD skullcap adjunct, non-XRD foam helmet, and non-XRD foam helmet with XRD skullcap adjunct. The helmets were dropped from a height that resulted in sub-concussive linear accelerations (25-80â¯g's). Using a tri-axial accelerometer, peak linear accelerations (g) were measured, and the average was used to compare impact attenuation properties across the four conditions.RESULTS:
The highest linear accelerations were observed in the XRD foam helmet without skullcap (32.97⯱â¯0.61â¯g) and were significantly greater (pâ¯<â¯0.001) than the XRD helmet with skullcap (21.38⯱â¯0.76â¯g). The helmet without XRD foam elicited the lowest peak linear accelerations (16.10⯱â¯0.73â¯g) which were significantly lower than the XRD foam helmet regardless of whether the skullcap was added (pâ¯<â¯0.001).CONCLUSIONS:
Although sub-concussive loads are potentially just as dangerous, much of the research regarding helmet and skullcap efficacy appears to be at high concussive impacts; <70â¯g's. The findings suggest that helmets with incorporated XRD foam, either within the design or added as an adjunct, are less effective at attenuating linear accelerations at sub-concussive levels than the low-density foam helmet.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Aceleração
/
Dispositivos de Proteção da Cabeça
/
Hóquei
Limite:
Humans
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article