Evidence map›Paper›PMID 33618557›Full record

Observational studySports health

Head Impact Exposures Among Youth Tackle and Flag American Football Athletes.

Dana Waltzman, Kelly Sarmiento, Owen Devine, Xinjian Zhang, Lara DePadilla, Marcie-Jo Kresnow, Kelley Borradaile, Andrew Hurwitz, David Jones, Ravi Goyal and 1 more

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in Sports health. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. A Description of Suspected Concussions in Football-Related Activities among K-12 Students in Utah.The Journal of school nursing : the official publication of the National Association of School Nurses · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. American football: Watch Your Head!Frontiers for young minds · 2021
    Article
  11. Article
  12. Looking Back.Sports health
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Dana Waltzman
Kelly Sarmiento
Owen Devine
Xinjian Zhang
Lara DePadilla
Marcie-Jo Kresnow
Kelley Borradaile
Andrew Hurwitz
David Jones
Ravi Goyal
Matthew J Breiding

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPromoted as a safer alternative to tackle football, there has been an increase in flag football participation in recent years. However, examinations of head impact exposure in flag football as compared with tackle football are currently limited. HYPOTHESIS: Tackle football athletes will have a greater number and magnitude of head impacts compared with flag football athletes. STUDY

designCohort study. LEVEL OF EVIDENCE: Level 4.

methodsUsing mouthguard sensors, this observational, prospective cohort study captured data on the number and magnitude of head impacts among 524 male tackle and flag football athletes (6-14 years old) over the course of a single football season. Estimates of interest based on regression models used Bayesian methods to estimate differences between tackle and flag athletes.

resultsThere were 186,239 head impacts recorded during the study. Tackle football athletes sustained 14.67 (95% CI 9.75-21.95) times more head impacts during an athletic exposure (game or practice) compared with flag football athletes. Magnitude of impact for the 50th and 95th percentile was 18.15

conclusionThis study demonstrates that youth athletes who play tackle football are more likely to experience a greater number of head impacts and are at a markedly increased risk for high-magnitude impacts compared with flag football athletes. CLINICAL RELEVANCE: These results suggest that flag football has fewer head impact exposures, which potentially minimizes concussion risk, making it a safer alternative for 6- to 14-year-old youth football athletes.

Indexed as

AdolescentChildCohort StudiesCraniocerebral TraumaFootballHumansTransducersUnited Statesconcussionflagfootballhead impacttackle

Identifiers

PMID33618557
PMCPMC8404728
OpenAlexW3132698092

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.