Impact Mitigation Properties and Material Characterization of Women's Lacrosse Headgear.

Autor: Baker G; Department of Mechanical Engineering, College of Engineering and Computer Science, University of Michigan-Dearborn, 4901 Evergreen Rd, Dearborn, MI, 48128, USA., Kim W; Department of Mechanical Engineering, College of Engineering and Computer Science, University of Michigan-Dearborn, 4901 Evergreen Rd, Dearborn, MI, 48128, USA., Rowe M; Department of Mechanical Engineering, College of Engineering and Computer Science, University of Michigan-Dearborn, 4901 Evergreen Rd, Dearborn, MI, 48128, USA., Argento A; Department of Mechanical Engineering, College of Engineering and Computer Science, University of Michigan-Dearborn, 4901 Evergreen Rd, Dearborn, MI, 48128, USA., Esquivel A; Department of Mechanical Engineering, College of Engineering and Computer Science, University of Michigan-Dearborn, 4901 Evergreen Rd, Dearborn, MI, 48128, USA. aoe@umich.edu.
Jazyk: angličtina
Zdroj: Annals of biomedical engineering [Ann Biomed Eng] 2022 Nov; Vol. 50 (11), pp. 1648-1660. Date of Electronic Publication: 2022 Oct 05.
DOI: 10.1007/s10439-022-03092-y
Abstrakt: The purpose of this study was to examine the impact attenuation properties of women's lacrosse headgear and to characterize mechanical properties of the materials of which they are composed. Impacts using a linear impactor (2.2, 2.9, and 5.0 m/s) and a projectile shooter (13.4 and 27.0 m/s) were applied to a Hybrid III 50th male head-neck assembly at six impact locations to replicate realistic women's lacrosse head impacts. Individual materials that make up the headgear were tested in compression at two quasi-static strain rates, 0.01/s and1/s, and 100/s using uniaxial test machines. For the linear impactor tests, results showed a significant decrease in peak linear and rotational acceleration (PLA and PRA), peak rotational velocity (PRV), head injury criteria and brain injury criteria in the helmeted impacts (p < 0.022). During the ball impacts PRV and PRA were significantly lower for both helmeted conditions compared with no helmet (p < 0.01). Material characterization tests indicated a range of rate effects in these materials ranging from weak to pronounced, and these effects correspondingly influenced the strain energy density graphs. The connection of the materials' rate effects to the performance of the headgear is described in general and in relation to the impact tests.
(© 2022. The Author(s) under exclusive licence to Biomedical Engineering Society.)
Databáze: MEDLINE
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