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Related Experiment Video

Updated: Dec 28, 2025

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
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Measuring Blunt Force Head Impacts in Athletes.

Adam Bartsch1, Rajiv Dama1, Jay Alberts2

  • 1Prevent Biometrics, 4530 W 77th St, Suite 300, Edina, MN 55435.

Military Medicine
|February 20, 2020
PubMed
Summary
This summary is machine-generated.

A new head impact monitoring mouthguard (IMM) system was developed to better understand concussion mechanisms. The IMM system successfully collected head impact data from athletes, providing preliminary human tolerance limits for head impacts.

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Area of Science:

  • Sports Medicine
  • Biomechanics
  • Neurology

Background:

  • Concussion remains a significant cause of acute and chronic injuries.
  • Current understanding of concussion injury mechanisms and risk functions is limited.
  • This knowledge gap impedes the development of standardized monitoring, safety testing, and protective measures.

Purpose of the Study:

  • To develop and deploy a head impact monitoring mouthguard (IMM) system.
  • To address the ill-defined nature of concussion injury mechanisms and risk functions.
  • To gather data for establishing human tolerance limits for head impacts.

Main Methods:

  • The IMM system underwent laboratory calibration with 731 tests.
  • On-field data were collected from 54 amateur American football and boxing athletes.
  • 890 true-positive head impacts were confirmed using signal processing and NIH Common Data Elements.

Main Results:

  • Laboratory IMM data closely matched ideal linear models (R2=1).
  • Peak linear acceleration ranged from 20 to 50 g, and peak angular acceleration from 1,700 to 4,600 rad/s².
  • No concussions were diagnosed in the study participants.

Conclusions:

  • The collected data offer preliminary insights into human tolerance for head impacts.
  • Further research with larger populations is necessary to quantify real-world dose-response relationships.
  • Ongoing work aims to refine understanding of impact factors influencing concussion risk.