How Shell Add-On Products Influence Varsity Football Helmet Performance?

Concussion Football helmet Guardian Cap SAFR Helmet Cover Shell Add-On

Journal

Annals of biomedical engineering
ISSN: 1573-9686
Titre abrégé: Ann Biomed Eng
Pays: United States
ID NLM: 0361512

Informations de publication

Date de publication:
02 Oct 2024
Historique:
received: 01 07 2024
accepted: 22 09 2024
medline: 2 10 2024
pubmed: 2 10 2024
entrez: 2 10 2024
Statut: aheadofprint

Résumé

The study purpose was to investigate the laboratory-based performance of three commercially available shell add-on products under varsity-level impact conditions. Pendulum impact tests were conducted at multiple locations (front, front boss, rear, side) and speeds (3.1, 4.9, 6.4 m/s) using two helmet models. Tests were performed with a single add-on configuration for baseline comparisons and a double add-on configuration to simulate collisions with both players wearing shell add-ons. A linear mixed-effect model was used to evaluate peak linear acceleration (PLA), peak rotational acceleration (PRA), and concussion risk, which was calculated from a bivariate injury risk function, based on shell add-on and test configuration. All shell add-ons decreased peak head kinematics and injury risk compared to controls, with the Guardian NXT producing the largest reductions (PLA: 7.9%, PRA: 14.1%, Risk: 34.1%) compared to the SAFR Helmet Cover (PLA: 4.5%, PRA: 9.3%, Risk: 24.7%) and Guardian XT (PLA: 3.2%, PRA: 5.0%, Risk: 15.5%). The same trend was observed in the double add-on test configuration. However, the Guardian NXT (PLA: 17.1%; PRA: 11.5%; Risk: 62.8%) and SAFR Helmet Cover (PLA: 12.2%; PRA: 9.1%; Risk: 52.2%) produced larger reductions in peak head kinematics and injury risk than the Guardian XT (PLA: 5.7%, PRA: 2.2%, Risk: 21.8%). In laboratory-based assessments that simulated varsity-level impact conditions, the Guardian NXT was associated with larger reductions in PLA, PRA, and injury risk compared to the SAFR Helmet Cover and Guardian XT. Although shell add-ons can enhance head protection, helmet model selection should be prioritized.

Identifiants

pubmed: 39356379
doi: 10.1007/s10439-024-03627-5
pii: 10.1007/s10439-024-03627-5
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Informations de copyright

© 2024. The Author(s).

Références

Swartz, E. E., et al. National athletic trainers’ association position statement: reducing intentional head-first contact behavior in American football players. J. Athl. Train. 57(2):113–124, 2022. https://doi.org/10.4085/1062-6050-0062.21 .
doi: 10.4085/1062-6050-0062.21 pubmed: 35201304 pmcid: 8876879
Shanley, E., et al. Heads up football training decreases concussion rates in high school football players. Clin. J. Sport Med. 31(2):120, 2021. https://doi.org/10.1097/JSM.0000000000000711 .
doi: 10.1097/JSM.0000000000000711 pubmed: 30908329
Champagne, A. A., et al. Data-informed intervention improves football technique and reduces head impacts. Med. Sci. Sports Exerc. 51(11):2366–2374, 2019. https://doi.org/10.1249/MSS.0000000000002046 .
doi: 10.1249/MSS.0000000000002046 pubmed: 31269008 pmcid: 7028524
Schussler, E., R. J. Jagacinski, S. E. White, A. M. Chaudhari, J. A. Buford, and J. A. Onate. The effect of tackling training on head accelerations in youth American football. Int. J. Sports Phys. Ther. 13(2):229, 2018.
doi: 10.26603/ijspt20180229 pubmed: 30090681 pmcid: 6063062
Gellner, R. A., E. T. Campolettano, and S. Rowson. Does tackling form affect head acceleration in youth football players? Proc. Inst. Mech. Eng. P. 234(3):257–267, 2020. https://doi.org/10.1177/1754337120911497 .
doi: 10.1177/1754337120911497
Viano, D. C., and D. Halstead. Change in size and impact performance of football helmets from the 1970s to 2010. Ann. Biomed. Eng. 40(1):175–184, 2012. https://doi.org/10.1007/s10439-011-0395-1 .
doi: 10.1007/s10439-011-0395-1 pubmed: 21994057
Rowson, S., et al. Can helmet design reduce the risk of concussion in football? J. Neurosurg. 120(4):919–922, 2014. https://doi.org/10.3171/2014.1.JNS13916 .
doi: 10.3171/2014.1.JNS13916 pubmed: 24484225
Collins, M., M. R. Lovell, G. L. Iverson, T. Ide, and J. Maroon. Examining concussion rates and return to play in high school football players wearing newer helmet technology: a three-year prospective cohort study. Neurosurgery. 58(2):275–286, 2006. https://doi.org/10.1227/01.NEU.0000200441.92742.46 . (discussion 275–286)
doi: 10.1227/01.NEU.0000200441.92742.46 pubmed: 16462481
Bailey, A. M., et al. Comparison of laboratory and on-field performance of American football helmets. Ann. Biomed. Eng. 48(11):2531–2541, 2020. https://doi.org/10.1007/s10439-020-02627-5 .
doi: 10.1007/s10439-020-02627-5 pubmed: 33025320
Rowson, S., and S. M. Duma. Brain injury prediction: assessing the combined probability of concussion using linear and rotational head acceleration. Ann. Biomed. Eng. 41(5):873–882, 2013. https://doi.org/10.1007/s10439-012-0731-0 .
doi: 10.1007/s10439-012-0731-0 pubmed: 23299827 pmcid: 3624001
Campolettano, E. T., et al. Factors affecting head impact exposure in college football practices: a multi-institutional study. Ann. Biomed. Eng. 47(10):2086–2093, 2019. https://doi.org/10.1007/s10439-019-02309-x .
doi: 10.1007/s10439-019-02309-x pubmed: 31240507
Rowson, S., G. Brolinson, M. Goforth, D. Dietter, and S. Duma. Linear and angular head acceleration measurements in collegiate football. J. Biomech. Eng. 2009. https://doi.org/10.1115/1.3130454 .
doi: 10.1115/1.3130454 pubmed: 19449970
Rowson, S., et al. Rotational head kinematics in football impacts: an injury risk function for concussion. Ann. Biomed. Eng. 40(1):1–13, 2012. https://doi.org/10.1007/s10439-011-0392-4 .
doi: 10.1007/s10439-011-0392-4 pubmed: 22012081
Zuckerman, S. L., et al. A football helmet prototype that reduces linear and rotational acceleration with the addition of an outer shell. J. Neurosurg. 130(5):1634, 2018. https://doi.org/10.3171/2018.1.JNS172733 .
doi: 10.3171/2018.1.JNS172733 pubmed: 29957115 pmcid: 6289811
Breedlove, K. M., E. Breedlove, E. Nauman, T. G. Bowman, and M. R. Lininger. The ability of an aftermarket helmet add-on device to reduce impact-force accelerations during drop tests. J. Athl. Train. 52(9):802–808, 2017. https://doi.org/10.4085/1062-6050-52.6.01 .
doi: 10.4085/1062-6050-52.6.01 pubmed: 28771033 pmcid: 5634228
Cecchi N. J. et al. Padded helmet shell covers in American football: a comprehensive laboratory evaluation with preliminary on-field findings. 2022. https://doi.org/10.48550/arXiv.2211.14921 .
Bailey, A. M., J. R. Funk, J. R. Crandall, B. S. Myers, and K. B. Arbogast. Laboratory evaluation of shell add-on products for American football helmets for professional linemen. Ann. Biomed. Eng. 49(10):2747–2759, 2021. https://doi.org/10.1007/s10439-021-02842-8 .
doi: 10.1007/s10439-021-02842-8 pubmed: 34378120
Campolettano, E. T., R. A. Gellner, and S. Rowson. Relationship between impact velocity and resulting head accelerations during head impacts in youth football. In: Proceedings. International IRCOBI Conerence on the Biomechanics of Impacts, Vol. 2018, 2018, p. 326.
NFL to expand use of Guardian Caps in preseason, regular season practices—NBC Sports. https://www.nbcsports.com/nfl/profootballtalk/rumor-mill/news/nfl-to-expand-use-of-guardian-caps-in-preseason-regular-season-practices . Accessed 28 May 2024.
Hansen, K. NFL permits guardian caps in games. Guardian Sports. https://guardiansports.com/2024/04/29/nfl_permits_caps_in_games/ . Accessed 28 May 2024.
SAFR Football Helmet Covers. SAFR. https://safrsports.com/safr-helmet-covers/ . Accessed 28 May 2024.
Cobb, B. R., A. M. Zadnik, and S. Rowson. Comparative analysis of helmeted impact response of Hybrid III and National Operating Committee on Standards for Athletic Equipment headforms. Proc. Inst. Mech. Eng. P. 230(1):50–60, 2016. https://doi.org/10.1177/1754337115599133 .
doi: 10.1177/1754337115599133
Cobb, B. R., A. MacAlister, T. J. Young, A. R. Kemper, S. Rowson, and S. M. Duma. Quantitative comparison of Hybrid III and National Operating Committee on Standards for Athletic Equipment headform shape characteristics and implications on football helmet fit. Proc. Inst. Mech. Eng. P. 229(1):39–46, 2015. https://doi.org/10.1177/1754337114548245 .
doi: 10.1177/1754337114548245
Rowson, B., and S. M. Duma. A review of on-field investigations into the biomechanics of concussion in football and translation to head injury mitigation strategies. Ann. Biomed. Eng. 48(12):2734–2750, 2020. https://doi.org/10.1007/s10439-020-02684-w .
doi: 10.1007/s10439-020-02684-w pubmed: 33200263
Rowson, S., et al. Accounting for variance in concussion tolerance between individuals: comparing head accelerations between concussed and physically matched control subjects. Ann. Biomed. Eng. 47(10):2048–2056, 2019. https://doi.org/10.1007/s10439-019-02329-7 .
doi: 10.1007/s10439-019-02329-7 pubmed: 31342336 pmcid: 6785592
Kuznetsova, A., P. B. Brockhoff, and R. H. B. Christensen. lmerTest package: tests in linear mixed effects models. J. Stat. Softw. 82:1–26, 2017. https://doi.org/10.18637/jss.v082.i13 .
doi: 10.18637/jss.v082.i13
Rowson, S., J. G. Beckwith, J. J. Chu, D. S. Leonard, R. M. Greenwald, and S. M. Duma. A six degree of freedom head acceleration measurement device for use in football. J. Appl. Biomech. 2011. https://doi.org/10.1123/jab.27.1.8 .
doi: 10.1123/jab.27.1.8 pubmed: 21911854 pmcid: 3690379
Crisco, J. J., et al. Head impact exposure in collegiate football players. J. Biomech. 44(15):2673–2678, 2011. https://doi.org/10.1016/j.jbiomech.2011.08.003 .
doi: 10.1016/j.jbiomech.2011.08.003 pubmed: 21872862 pmcid: 3189296
Rowson, S., and S. M. Duma. Development of the STAR evaluation system for football helmets: integrating player head impact exposure and risk of concussion. Ann. Biomed. Eng. 39(8):2130–2140, 2011. https://doi.org/10.1007/s10439-011-0322-5 .
doi: 10.1007/s10439-011-0322-5 pubmed: 21553135

Auteurs

Nicole E-P Stark (NE)

Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, USA.

Mark T Begonia (MT)

Institute for Critical Technology and Applied Science, Virginia Tech, 325 Stanger St., Kelly Hall 120, Blacksburg, VA, 24061, USA. mbegonia@vt.edu.

Caitlyn Jung (C)

Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, USA.

Steven Rowson (S)

Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, USA.

Classifications MeSH