Ranking Stretcher and Backboard Related Paramedic Lifting Tasks Based on Their Biomechanical Demand on the Low Back
Bibliographic record
Abstract
Occupational ApplicationsWe rank ordered essential paramedic lifting tasks by biomechanical exposure measures at the low back, to understand aspects of paramedic work that impose the greatest risk of musculoskeletal disorders. Specifically, stretcher raising, lowering, and loading, and scoop stretcher lifting, were ordered in terms of peak sagittal low back angles, peak low back compression and antero-posterior shear forces, estimated cumulative damage over a work shift, and the probability of being a high-risk work task. We found that scoop stretcher lifting imposed the highest peak low back angles and both compression and shear forces, while stretcher raising had the greatest estimated cumulative damage and probability of being a high-risk task. All tasks resulted in peak low back compression forces that exceeded injury risk guidelines, and all tasks were identified as high-risk based on estimated cumulative damage. These results highlight the need for interventions in the paramedic sector to reduce the resultant biomechanical exposures, prioritizing efforts towards scoop board lifting and stretcher raising.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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 teacher head, 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".