ArticlePloS one2018
Comparison of video-based and sensor-based head impact exposure.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 4 of them syntheses that pooled it.
What it found
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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.
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.
Who cites it
43 citing papers in PubMed, 4 syntheses or guidelines pooled it, 73 citations in OpenAlex.
- Unlocking the Impact: A Systematic Review and Meta-Analysis of Biomechanical Insights into Rugby Head Impacts Using Wearable Sensor Technology.Sports medicine (Auckland, N.Z.) · 2025Pooled it
- Performance of Oral Cavity Sensors: A Systematic Review.Sensors (Basel, Switzerland) · 2023Pooled it
- A Systematic Review of Head Impacts and Acceleration Associated with Soccer.International journal of environmental research and public health · 2022Pooled it
- Head Impact Research Using Inertial Sensors in Sport: A Systematic Review of Methods, Demographics, and Factors Contributing to Exposure.Sports medicine (Auckland, N.Z.) · 2022Pooled it
- Concussion Risk Between Individual Football Players: Survival Analysis of Recurrent Events and Non-events.Annals of biomedical engineering · 2020Trial
- High Energy Side and Rear American Football Head Impacts Cause Obvious Performance Decrement on Video.Annals of biomedical engineering · 2020Trial
- Head Acceleration Event Magnitude and Incidence Rate in Academy Rugby Union: A Comparison Across Club and International Competition.Sports medicine (Auckland, N.Z.) · 2026Article
- Beyond protection: the growing role of instrumented mouthguards in sports.British dental journal · 2026Review
- On-field Head Acceleration Exposure Measurement Using Instrumented Mouthguards: Missing Data Imputation for Complete Exposure Analysis.Annals of biomedical engineering · 2025Article
- Impact Biomechanics Reveal Positional and Session Type Differences in Canadian Collegiate Football.European journal of sport science · 2025Article
- Associations of Tackling Characteristics, Player Position, and Head Contact Risk During Game Play in College Football.Journal of athletic training · 2025Article
- Quantitative video analysis of head acceleration events: a review.Frontiers in bioengineering and biotechnology · 2025Review
- On-field Head Acceleration Exposure Measurements Using Instrumented Mouthguards: Multi-stage Screening to Optimize Data Quality.Annals of biomedical engineering · 2024Article
- When to Pull the Trigger: Conceptual Considerations for Approximating Head Acceleration Events Using Instrumented Mouthguards.Sports medicine (Auckland, N.Z.) · 2024Review
- Capturing Head Impacts in Boxing: A Video-Based Comparison of Three Wearable Sensors.Annals of biomedical engineering · 2024Article
- Individualized monitoring of longitudinal heading exposure in soccer.Scientific reports · 2024Article
- Position-based assessment of head impact frequency, severity, type, and location in high school American football.Frontiers in bioengineering and biotechnology · 2024Article
- Head Exposure to Acceleration Database in Sport (HEADSport): a kinematic signal processing method to enable instrumented mouthguard (iMG) field-based inter-study comparisons.BMJ open sport & exercise medicine · 2024Article
- Head Kinematics, Blood Biomarkers, and Histology in Large Animal Models of Traumatic Brain Injury and Hemorrhagic Shock.Journal of neurotrauma · 2023Article
- Validation of an instrumented mouthguard in rugby union-a pilot study comparing impact sensor technology to video analysis.Frontiers in sports and active living · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Previous research has sought to quantify head impact exposure using wearable kinematic sensors. However, many sensors suffer from poor accuracy in estimating impact kinematics and count, motivating the need for additional independent impact exposure quantification for comparison. Here, we equipped seven collegiate American football players with instrumented mouthguards, and video recorded practices and games to compare video-based and sensor-based exposure rates and impact location distributions. Over 50 player-hours, we identified 271 helmet contact periods in video, while the instrumented mouthguard sensor recorded 2,032 discrete head impacts. Matching video and mouthguard real-time stamps yielded 193 video-identified helmet contact periods and 217 sensor-recorded impacts. To compare impact locations, we binned matched impacts into frontal, rear, side, oblique, and top locations based on video observations and sensor kinematics. While both video-based and sensor-based methods found similar location distributions, our best method utilizing integrated linear and angular position only correctly predicted 81 of 217 impacts. Finally, based on the activity timeline from video assessment, we also developed a new exposure metric unique to American football quantifying number of cross-verified sensor impacts per player-play. We found significantly higher exposure during games (0.35, 95% CI: 0.29-0.42) than practices (0.20, 95% CI: 0.17-0.23) (p<0.05). In the traditional impacts per player-hour metric, we observed higher exposure during practices (4.7) than games (3.7) due to increased player activity in practices. Thus, our exposure metric accounts for variability in on-field participation. While both video-based and sensor-based exposure datasets have limitations, they can complement one another to provide more confidence in exposure statistics.
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Registered trials
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.