841 MEP052 – Finding the underpinning injuries: injuries in male and female high school wrestlers
Bibliographic record
Abstract
Background High school wrestling is popular among Canadian youth. The sport involves continuous player-to-player contact and maneuvers that can result in injury. Little is known about wrestling injury epidemiology in the Canadian context. Objective To examine injury rates and types among male and female youth high school wrestlers in Canada. Design Prospective cohort. Setting High school league. Participants Female and male wrestlers in grades 10–12 (ages 15–18). Assessment of Risk Factors Differences between injury rates and types were examined amongst male and female adolescent wrestlers. Main Outcome Measurements A validated injury surveillance system was used to record injury occurrence during the 2022–2023 high school wrestling season (17 weeks). Injury incidence rates (IR) were estimated [#injuries/100 player-seasons,95% confidence intervals (CI)] and incidence rate ratio (IRR) based on Poisson regression analysis (adjusting for cluster by team) to compare female and male IRs. Results One-hundred-three high school wrestlers (59 M; 44 F) were recruited from 6 school teams. Sixty-five (36 M; 29 F) players reported 88 injuries with 9/44 (20.45%) females and 13/44 (29.54%) males sustaining multiple injuries. The female IR was 102.27/100 player-seasons (95%CI;73.52–142.27), the male IR was 72.88/100 player-seasons (95%CI;43.77–121.34). The IRR was 1.4 (95%CI; 0.74–2.65), suggesting a clinically relevant 40% higher IR in females that was not statistically significant. Match-related injuries accounted for 45/88 injuries (51%) and 42/88 (48%) were practice-related. Shoulder (15/88;17.05%), head (12/88;13.64%), and knee (11/88;12.5%) injuries were most common. The female concussion IR was 4.5/100 player-seasons (95%CI;1.6–13.3), the male concussion IR was 10.2/100 player-seasons (95%CI;5.6–18.5) (IRR=0.45 (95%CI; 0.13–1.49)). Median time loss/injury until return to contact activity was 3 days (IQR=9). Conclusion High injury rates were found in Canadian high school wrestlers with the most common occurring to the shoulder, head, and knee. Injury prevention initiatives in high school wrestlers is paramount.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.014 | 0.002 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".