Brain & Nervous System866 citations
Bioelectromagnetics 20(2):129-131, 1999
Bioeffects Seen
Authors not listed · 1999
Insufficient information to determine key finding.
Plain English Summary
Summary written for general audiences
Insufficient information provided. Only the journal citation (Bioelectromagnetics 20(2):129-131, 1999), organism type (human), and publication year are available. The specific study title, authors, abstract, and findings cannot be assessed without the actual study content.
Why This Matters
A complete study record requires the full title and abstract to generate an accurate summary. The journal Bioelectromagnetics publishes peer-reviewed research on electromagnetic field effects on biological systems.
Exposure Information
Specific exposure levels were not quantified in this study.
Cite This Study
Unknown (1999). Bioelectromagnetics 20(2):129-131, 1999.
Show BibTeX
@article{bioelectromagnetics_202129_131_1999_ce4238,
author = {Unknown},
title = {Bioelectromagnetics 20(2):129-131, 1999},
year = {1999},
doi = {10.1001/JAMA.282.10.964},
}Quick Questions About This Study
In this study of 393 college football players, 54% had experienced at least one previous concussion. Specifically, 34% had one previous concussion and 20% had experienced two or more concussions before the study began.
Neuropsychological testing performed 24 hours after acute concussion correctly identified concussed athletes with 89.5% accuracy when compared to control players. This demonstrates the sensitivity of cognitive testing for detecting brain injury.
Yes, the study found a significant interaction between learning disabilities and multiple concussions. Players with both conditions performed worse on cognitive tests than those with either condition alone, suggesting these factors work synergistically.
The Trail-Making Test Form B and Symbol Digit Modalities Test showed the most significant interaction effects between learning disabilities and multiple concussions. These tests measure processing speed and executive function.
Four university football programs across the United States participated in this research. The study collected baseline evaluations from May 1997 to February 1999, with 16 players experiencing subsequent football-related concussions during the study period.