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Exposure to Head Impacts and Cognitive and Behavioral Outcomes in Youth Tackle Football Players Across 4 Seasons
IMPORTANCE: Repetitive head impacts have been posited to contribute to neurocognitive and behavioral difficulties in contact sport athletes. OBJECTIVE: To identify associations between cognitive and behavioral outcomes and head impacts measured in youth tackle football players over 4 seasons of play...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Medical Association
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8719231/ https://www.ncbi.nlm.nih.gov/pubmed/34967882 http://dx.doi.org/10.1001/jamanetworkopen.2021.40359 |
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author | Rose, Sean C. Yeates, Keith Owen Nguyen, Joseph T. Pizzimenti, Natalie M. Ercole, Patrick M. McCarthy, Matthew T. |
author_facet | Rose, Sean C. Yeates, Keith Owen Nguyen, Joseph T. Pizzimenti, Natalie M. Ercole, Patrick M. McCarthy, Matthew T. |
author_sort | Rose, Sean C. |
collection | PubMed |
description | IMPORTANCE: Repetitive head impacts have been posited to contribute to neurocognitive and behavioral difficulties in contact sport athletes. OBJECTIVE: To identify associations between cognitive and behavioral outcomes and head impacts measured in youth tackle football players over 4 seasons of play. DESIGN, SETTING, AND PARTICIPANTS: This prospective cohort study was conducted from July 2016 through January 2020, spanning 4 football seasons. The setting was a youth tackle football program and outpatient medical clinic. Players were recruited from 4 football teams composed of fifth and sixth graders, and all interested players who volunteered to participate were enrolled. Data analysis was performed from March 2020 to June 2021. EXPOSURES: Impacts were measured using helmet-based sensors during practices and games throughout 4 consecutive seasons of play. Impacts were summed to yield cumulative head impact gravitational force equivalents per season. MAIN OUTCOMES AND MEASURES: Ten cognitive and behavioral measures were completed before and after each football season. RESULTS: There were 70 male participants aged 9 to 12 years (mean [SD] age, 10.6 [0.64] years), with 18 completing all 4 years of the study. At the post–season 1 time point, higher cumulative impacts were associated with lower self-reported symptom burden (β = −0.6; 95% CI, −1.0 to −0.2; P = .004). After correcting for multiple comparisons, no other associations were found between impacts and outcome measures. At multiple times throughout the study, premorbid attention-deficit/hyperactivity disorder, anxiety, and depression were associated with worse cognitive or behavioral scores, whereas a premorbid headache disorder or history of concussion was less often associated with outcomes. CONCLUSIONS AND RELEVANCE: In this cohort of youth tackle football players, premorbid conditions, including attention-deficit/hyperactivity disorder, anxiety, and depression, were associated with cognitive and behavioral outcomes more often than cumulative impact. |
format | Online Article Text |
id | pubmed-8719231 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Medical Association |
record_format | MEDLINE/PubMed |
spelling | pubmed-87192312022-01-12 Exposure to Head Impacts and Cognitive and Behavioral Outcomes in Youth Tackle Football Players Across 4 Seasons Rose, Sean C. Yeates, Keith Owen Nguyen, Joseph T. Pizzimenti, Natalie M. Ercole, Patrick M. McCarthy, Matthew T. JAMA Netw Open Original Investigation IMPORTANCE: Repetitive head impacts have been posited to contribute to neurocognitive and behavioral difficulties in contact sport athletes. OBJECTIVE: To identify associations between cognitive and behavioral outcomes and head impacts measured in youth tackle football players over 4 seasons of play. DESIGN, SETTING, AND PARTICIPANTS: This prospective cohort study was conducted from July 2016 through January 2020, spanning 4 football seasons. The setting was a youth tackle football program and outpatient medical clinic. Players were recruited from 4 football teams composed of fifth and sixth graders, and all interested players who volunteered to participate were enrolled. Data analysis was performed from March 2020 to June 2021. EXPOSURES: Impacts were measured using helmet-based sensors during practices and games throughout 4 consecutive seasons of play. Impacts were summed to yield cumulative head impact gravitational force equivalents per season. MAIN OUTCOMES AND MEASURES: Ten cognitive and behavioral measures were completed before and after each football season. RESULTS: There were 70 male participants aged 9 to 12 years (mean [SD] age, 10.6 [0.64] years), with 18 completing all 4 years of the study. At the post–season 1 time point, higher cumulative impacts were associated with lower self-reported symptom burden (β = −0.6; 95% CI, −1.0 to −0.2; P = .004). After correcting for multiple comparisons, no other associations were found between impacts and outcome measures. At multiple times throughout the study, premorbid attention-deficit/hyperactivity disorder, anxiety, and depression were associated with worse cognitive or behavioral scores, whereas a premorbid headache disorder or history of concussion was less often associated with outcomes. CONCLUSIONS AND RELEVANCE: In this cohort of youth tackle football players, premorbid conditions, including attention-deficit/hyperactivity disorder, anxiety, and depression, were associated with cognitive and behavioral outcomes more often than cumulative impact. American Medical Association 2021-12-30 /pmc/articles/PMC8719231/ /pubmed/34967882 http://dx.doi.org/10.1001/jamanetworkopen.2021.40359 Text en Copyright 2021 Rose SC et al. JAMA Network Open. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the CC-BY License. |
spellingShingle | Original Investigation Rose, Sean C. Yeates, Keith Owen Nguyen, Joseph T. Pizzimenti, Natalie M. Ercole, Patrick M. McCarthy, Matthew T. Exposure to Head Impacts and Cognitive and Behavioral Outcomes in Youth Tackle Football Players Across 4 Seasons |
title | Exposure to Head Impacts and Cognitive and Behavioral Outcomes in Youth Tackle Football Players Across 4 Seasons |
title_full | Exposure to Head Impacts and Cognitive and Behavioral Outcomes in Youth Tackle Football Players Across 4 Seasons |
title_fullStr | Exposure to Head Impacts and Cognitive and Behavioral Outcomes in Youth Tackle Football Players Across 4 Seasons |
title_full_unstemmed | Exposure to Head Impacts and Cognitive and Behavioral Outcomes in Youth Tackle Football Players Across 4 Seasons |
title_short | Exposure to Head Impacts and Cognitive and Behavioral Outcomes in Youth Tackle Football Players Across 4 Seasons |
title_sort | exposure to head impacts and cognitive and behavioral outcomes in youth tackle football players across 4 seasons |
topic | Original Investigation |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8719231/ https://www.ncbi.nlm.nih.gov/pubmed/34967882 http://dx.doi.org/10.1001/jamanetworkopen.2021.40359 |
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