Influence of Retromalleolar Trimline Dimensions on Posterior Leaf Spring Ankle-Foot Orthosis Stiffness: A Finite Element Analysis Approach
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Bibliographic record
Abstract
Stroke is the leading cause of physical disabilities worldwide, often resulting in foot drop.Ankle-Foot Orthoses (AFOs) can enhance posture in foot drop cases and augment lower limb stability to support body weight.The Posterior Leaf Spring AFO (PLS AFO), a specific type of AFO, features a narrow retromalleolar region that allows movement without necessitating external force while influencing the AFO's stiffness.This parameter is crucial for determining the mechanical behavior of PLS AFOs.In this study, the impact of the retromalleolar trimline on the stiffness of a 3D PLS AFO model is investigated using the finite element method.Trimline widths of 8 cm and 10 cm, and a thickness of 10 mm, are examined.A 637 N load is applied to the calf area of the 3D PLS AFO model.The results demonstrate that stiffness increases proportionally with retromalleolar trimline width.A PLS AFO configuration with an 8 cm retromalleolar trimline width, 10 mm thickness, and carbon fiber material is deemed suitable for poststroke foot drop rehabilitation, as it provides improved foot clearance during the swing phase.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| 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) | 0.000 | 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 it