The Influence of Previous Injury History on Health and Fitness Outcomes in Junior High School Students
Bibliographic record
Abstract
Objective: To assess the influence of previous sport and recreational injury on body composition, cardiorespiratory fitness, musculoskeletal strength, and dynamic balance in junior high school students (ages 11-16). Methods: Cross-sectional study design. Participants included 1,039 students from six junior high schools in Calgary, Alberta, Canada. Demographics, injury history, and sport participation over the previous 12 months were collected using a questionnaire. Outcome measures included body mass index (BMI), waist circumference, predicted VO2max, vertical jump, eyes closed dynamic balance, and star excursion balance test reach distances. Results: Previously injured participants had significantly higher BMI and left foot balance times compared to uninjured participants. Exploratory analysis results suggest that those who sustained two injuries had a significantly increased BMI and waist circumference compared to those who sustained no injuries. Conclusions: Participants with a history of injury demonstrated more unhealthy body composition, but better left foot dynamic balance compared to uninjured participants.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".