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Measuring Head Impacts in Sports

This study has been withdrawn prior to enrollment.
Information provided by:
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Identifier:
First received: May 14, 2003
Last updated: October 28, 2014
Last verified: March 2004
Head impacts in sports can lead to brain injury even when the participant is wearing a helmet. The forces that contribute to brain injury from sports-related head impacts are not well understood. This study will test a new device to measure the speed of head impacts among football players.

Condition Intervention Phase
Brain Injuries
Brain Concussion
Device: Head Impact Recording Technology (HIRT)
Phase 2

Study Type: Observational
Official Title: Head Impact Recording Technology for Field Applications

Resource links provided by NLM:

Further study details as provided by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD):

Primary Outcome Measures:
  • Impact Severity [ Time Frame: Immediate ]

Enrollment: 0
Detailed Description:

Each year, 50 to 70 million people in the United States participate in helmeted and unhelmeted sports with the potential for head impacts. Such sports include football, soccer, hockey, basketball, and boxing. Participating in these sports carries the risk of mild traumatic brain injury (MTBI). The biomechanics of head impacts that result in concussions or other MTBIs are not well understood; however, it is thought that such impacts correlate with head accelerations. Currently, there is no system that allows researchers to measure head acceleration in a large number of individuals during actual play. This is a major obstacle in understanding the mechanism of MTBI and its prevention. This study will evaluate a newly designed miniature device that uses Head Impact Recording Technology (HIRT) to quantify head acceleration during impact in actual sports play.

One hundred college football players will be enrolled in the study. Data from HIRT-instrumented helmets will be collected during normal team practice and games throughout a 5-month football season. Data collected will be assessed to determine the incidence, magnitude, and duration of head acceleration during impacts on the sports field.


Ages Eligible for Study:   18 Years to 24 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria

  • College football players
  Contacts and Locations
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Please refer to this study by its identifier: NCT00060827

United States, Pennsylvania
Penn State University
State College, Pennsylvania, United States, 16801
Sponsors and Collaborators
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Principal Investigator: Rick Greenwald, Ph.D.
  More Information Identifier: NCT00060827     History of Changes
Other Study ID Numbers: R44HD040743-02 ( US NIH Grant/Contract Award Number )
Study First Received: May 14, 2003
Last Updated: October 28, 2014

Keywords provided by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD):
Mild traumatic brain injury

Additional relevant MeSH terms:
Brain Injuries
Brain Concussion
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Craniocerebral Trauma
Trauma, Nervous System
Wounds and Injuries
Head Injuries, Closed
Wounds, Nonpenetrating processed this record on May 25, 2017