CHAMGAP
VERIFIEDPassed the Codex final verification and publication gate. Evidence-verification cutoff: 2026-08-15. AI was used for research and drafting; the existence of all 2 cited sources was verified at the original page, followed by blind grading, adversarial audit, and build validation. Methodology v1.0.
Verdict No. 2636 · Search date 2026-08-15 · Methodology v1.0

Shoe-mounted ice cleats,
does it really help with Fewer winter outdoor falls in fall-prone older adults?

30-Second Summary
C
Evidence Grade C · 56 · Safety caution
Outdoor falls fell substantially, but the evidence is one small unblinded trial of 109 people
Remove cleats on smooth indoor flooring and inspect the coils and fit. No serious injury or fracture was reported in the trial.
What the
research shows
The grade is C with 56 points. One randomized trial recorded 19 outdoor falls with cleats versus 43 with usual footwear; the exposure-adjusted relative risk was 0.42. Only 109 participants were analyzed, however, and unblinded participants recorded falls in diaries.
What the
ads claim
Traction construction does not guarantee fall prevention on every winter surface. Indoor flooring, worn coils, or poor fitting may be destabilizing.
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Useful facts when choosing a product

  • The tested Yaktrax Walker used a rubber frame and metal coils over ordinary footwear.
  • Of 113 randomized participants, 109 entered the primary analysis; detailed reasons for four exclusions were not verified in the accessible record.
  • Outdoor falls numbered 19 versus 43, with no serious injury or fracture in either group.
ID

Chamgap Semantic Classification Code

Candidate index · review held

X.shoe-mounted-coil-ice-cleats.behavioral.fewer-winter-outdoor-falls-in-fall-prone-older-adults.assess.UNK

Behaviors, exposures and policies > Shoe-mounted coil ice cleats > Behavioral delivery > Fewer winter outdoor falls in fall-prone older adults > Association or change assessment > Unknown

An automated migration candidate, not an issued permanent code; exact claim scope remains under review. This machine-generated migration candidate helps retrieval but is not a permanent assignment. The original verdict ID and URL remain authoritative.

Download semantic index (JSON) · Codebook v1

Gap Measurement · Verdict 2636 · C 56
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

McKiernan randomized 113 fall-prone community adults aged 65 or older and analyzed 109 participants, 55 versus 54, over 10,724 diary-days. Relative risks were 0.42 for outdoor falls and 0.13 for injurious falls; neither group had a serious injury or fracture. Evidence tables report no concealed allocation or blinded assessment. The Marshfield Clinic Research Foundation supported the study, and the author stated that the manufacturer had no role in conception, design, conduct, or analysis. The predates routine trial registration.

02

Why this is classified as C (56)

Direct events, a large effect, and nonprofit support favor the claim, but one small unblinded diary-based trial gives C with 56 points.

Counterpoint. The result applies to fall-prone older adults, this coil device, and winter outdoor exposure, not every population or product.

Rejudgment record. Cross-check applied — Cross-checked randomized and analyzed counts, fall events, funding, masking, and contamination against the abstract and systematic-review study tables

Stored scoring profile
EndpointHHard endpoint - actual events such as death
ReplicationR1Single confirmatory trial
IndependenceI2Decisive evidence is publicly or non-profit funded
Effect sizeE+Meets the clinically important threshold

Stored derived and displayed grades match; this is not a current recalculation or validity check (C).

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Sub-claim grades by effect

This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.

Effect (sub-claim)GradeBasis
Fewer winter outdoor fallsCOne RCT showed a large reduction but analyzed only 109 people.
Fracture prevention?Neither group had a fracture, so this outcome cannot be judged.
✓

Cross-check — AI research and Codex final gate

AI was used for research and drafting. Blind grading, adversarial audit, and the methodology boundary rules were then reapplied before Codex performed the final evidence, grade, copy, and build checks. If a grade cannot be narrowed, both evidence positions and their reasons are published.
03

Evidence Table

StudyDesignSampleFundingEndpointResultWeight
McKiernan FE. 2005Randomized controlled trial113 randomized, 109 analyzed (55 versus 54), 10,724 observation-daysMarshfield Clinic Research Foundation; author reported no manufacturer roleOutdoor falls and injurious fallsOutdoor falls 19 versus 43, exposure-adjusted RR 0.42; injurious-fall RR 0.13Only direct randomized trial
§

Receipt — 2 References

All 2 cited sources were verified for existence at the original page (as of 2026-08-15).

McKiernan FE. A simple gait-stabilizing device reduces outdoor falls and nonserious injurious falls in fall-prone older people during the winter. J Am Geriatr Soc. 2005;53(6):943-947. PMID: 15935015. DOI: 10.1111/j.1532-5415.2005.53302.x.
checked
Clemson L, et al. Environmental interventions for preventing falls in older people living in the community. Cochrane Database Syst Rev. 2023;3:CD013258. PMCID: PMC9998238.
checked
Research and draft: AI used · Cross-check: blind grading and adversarial audit
Final verification and publication gate: Codex · Evidence date: 2026-08-15 · Corrections: none
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Cite this verdict

Shoe-mounted ice cleats x winter outdoor falls Evidence Grade C card
[Chamgap] Shoe-mounted ice cleats x winter outdoor falls — Evidence Grade C·56. 2 cited sources checked. Source: https://chamgap.com/en/verdicts/joint-bone/shoe-mounted-ice-cleats-winter-outdoor-falls/ · CC BY 4.0

CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.

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What this document does and does not do

Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.
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