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Factors affecting the efficacy of hip protectors during falls

2008· dissertation· en· W17459030 on OpenAlexfundno aff
Woochol Joseph Choi

Bibliographic record

VenueActa Ophthalmologica Scandinavica · 2008
Typedissertation
Languageen
FieldMedicine
TopicHip and Femur Fractures
Canadian institutionsnot available
FundersSimon Fraser University
KeywordsGreater trochanterSittingTrochanterHabitusMedicineHip fracturePhysical therapyPhysical medicine and rehabilitationSurgeryOsteoporosisFemurFemoral neckGeography

Abstract

fetched live from OpenAlex

Hip protectors represent a promising strategy for preventing fall-related hip fractures in the elderly.However, fractures still occur when wearing a protector.From a biomechanical perspective, the protective benefit of a hip protector should depend on the wearer's body habitus, the fall orientation, and the position of the hip protector relative to the greater trochanter.This thesis is comprised of two studies designed to test this hypothesis.In the first study, I conducted experiments with human subjects which demonstrate that the reduction in peak magnitude and change in pressure distribution provided by a hip protector depends on body habitus and fall direction.In the second study, I conducted experiments with a hip impact testing system to show that force magnitude and distribution are affected by the position of the hip protector relative to the greater trochanter.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.007
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.003
Threshold uncertainty score0.005

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.007
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.040
GPT teacher head0.317
Teacher spread0.278 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2008
Admission routes1
Has abstractyes

Explore more

Same venueActa Ophthalmologica ScandinavicaSame topicHip and Femur FracturesFrench-language works237,207