CHAMGAP
VERIFIEDPassed the Codex final verification and publication gate. Evidence-verification cutoff: 2026-09-07. AI was used for research and drafting; the existence of all 4 cited sources was verified (2 access-limited, verified via index/summary and marked), followed by blind grading, adversarial audit, and build validation. Methodology v1.0.
Verdict No. 3006 · Search date 2026-09-07 · Methodology v1.0

Eyes-open single-leg standing for one minute per leg, three times daily, as a stand-alone exercise,
does it really help with Reduced cumulative falls over six months in high-risk adults?

30-Second Summary
C
Evidence Grade C · 50 · Safety caution
The limited falls signal for stand-alone single-leg standing does not establish fracture prevention or higher overall BMD
People at risk of falling should begin near a wall, rail, or sturdy chair and with caregiver or professional assessment. The trial allowed unstable participants to hold a support bar and does not support attempting an unstable stance alone.
What the
research shows
Grade C with 50 points. In a trial with 553 randomized and 527 analyzed, cumulative six-month falls were reported as 118 with exercise and 121 with control, but these were event counts after excluding one recurrent faller from the exercise group. Hip fractures were one versus one, and overall BMD benefit was not reproduced, so the result does not establish fracture prevention or stronger bones.
What the
ads claim
The statement that a few daily minutes of one-leg standing prevents fractures or raises bone density expands a limited falls analysis to null fracture and overall BMD outcomes.
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Useful facts when choosing a product

  • Unstable high-risk participants were allowed to hold a support bar.
  • The 118 versus 121 figures were cumulative fall events, not numbers of fallers.
  • Unlike broad balance-and-functional-exercise verdict 1557, this verdict is restricted to the stand-alone single-leg protocol.
ID

Chamgap Semantic Classification Code

Permanent code issued

X.single-leg-standing.behavioral.falls-incidence.reduce.usual-care

Behaviors, exposures and policies > Eyes-open single-leg standing for one minute per leg, three times daily, as a stand-alone exercise > Behavioral delivery > Reduced cumulative falls over six months in high-risk adults > Reduction claim > Usual care

Codex retrospectively verified the principal intervention, delivery, population, endpoint, and comparator from the existing reviewed verdict and issued a permanent semantic code. Secondary outcomes on the page are not transferred as separate claims. The code identifies the intervention and claim; it never contains the evidence grade, score, or safety result.

Download semantic index (JSON) · Codebook v1

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Exact Claim Classification

These independent facets prevent evidence from different forms, routes, populations, effects, and comparators from being mixed.

Intervention classX · Behavior, exposure, or policy
Canonical ingredient or interventionEyes-open single-leg standing for one minute per leg, three times daily, as a stand-alone exercise
Source or part usedPlant source not applicable; specified behavior or training
Formulation or processingEyes-open single-leg standing for one minute per leg, three times daily, as a stand-alone exercise
RouteBehavioral delivery
DoseEyes-open single-leg standing for one minute per leg, three times daily, as a stand-alone exercise
DurationSix months
Population553 randomized and 527 analyzed, 315 exercise and 212 control
Effect or conditionReduced cumulative falls over six months in high-risk adults
Primary endpointCumulative falls and hip fractures
ComparatorUsual care
Duplicate-detection keysingle-leg-standing|behavioral|553 randomized and 527 analyzed, 315 exercise and 212 control|falls-incidence|Six months
Gap Measurement · Verdict 3006 · C 50
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

Participants stood for one minute per leg three times daily versus no exercise; unstable participants could use a support bar. Evidence from multicomponent balance-and-strength programs was not transferred to this stand-alone exercise.

02

Why this is classified as C (50)

A hard-event H endpoint is a strength, but R1, I1, unverified effect size EX, and B1 exclusion analysis give C with 50 points.

Counterpoint. One hip fracture in each group and null overall hip BMD do not support extending the falls signal to fracture prevention or stronger bones.

Rejudgment record. Cross-check applied — Separated cumulative event counts from faller risk, fractures, and BMD; incorporated the recurrent-faller exclusion, unequal denominators, and erratum; distinguished the stand-alone prescription from broader verdict 1557

Stored scoring profile
EndpointHHard endpoint - actual events such as death
ReplicationR1Single confirmatory trial
IndependenceI1Mixed funding sources
Effect sizeEXThe clinical size of the effect could not be judged

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

▦

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
Reduced cumulative falls over six monthsCA direct event signal is limited by recurrent-faller exclusion and missing effect size and CI.
Prevention of hip fractureDThe key trial was null with one event in each arm.
Increased overall hip BMDDThe independent trial was null overall, with positive findings only in a small age subgroup.
✓

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
Sakamoto K et al. 2006Six-month randomized controlled trial553 randomized and 527 analyzed, 315 exercise and 212 controlIndexed as non-U.S. government support; specific funding and conflicts unverifiedCumulative falls and hip fracturesFalls 118 versus 121 after excluding one recurrent faller from exercise; fractures 1 versus 1Key direct event trial
Sakamoto K et al. 2013Randomized trial in balance-impaired adults aged at least 75865 analyzed, 410 versus 455Specific funding and conflicts unverified; same investigator group as key trialFallers and fracturesPositive female faller subgroup; fractures nullSame-group support with erratum qualifier
Sakai A et al. 2010Randomized controlled trial in postmenopausal women94 randomized, 49 versus 45Specific funding and conflicts unverifiedSix-month hip BMDOverall hip BMD null; site-specific signals in a small age-70-plus subgroupContrary overall BMD evidence
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Receipt — 4 References

Of 4 cited sources, 2 had limited original-page access (blocked or summary-only) and were verified via index/summary, marked partial; the rest were verified at the original page. As of 2026-09-07.

Sakamoto K, et al. Effects of unipedal standing balance exercise on the prevention of falls and hip fracture among clinically defined high-risk elderly individuals: a randomized controlled trial. J Orthop Sci. 2006;11:467-472. PMID: 17013734. DOI: 10.1007/s00776-006-1057-2.
partial
Sakamoto K, et al. Why not use your own body weight to prevent falls? A randomized, controlled trial of balance therapy to prevent falls and fractures for elderly people who can stand on one leg for <=15 s. J Orthop Sci. 2013;18:110-120. PMID: 23138409. DOI: 10.1007/s00776-012-0328-3.
checked
Sakamoto K, et al. Erratum to: Why not use your own body weight to prevent falls? J Orthop Sci. 2014;19:373-374. PMID: 30321915. DOI: 10.1007/s00776-014-0531-5.
partial
Sakai A, et al. Unipedal standing exercise and hip bone mineral density in postmenopausal women: a randomized controlled trial. J Bone Miner Metab. 2010;28:42-48. PMID: 19521657. DOI: 10.1007/s00774-009-0100-8.
checked
Research and draft: AI used · Cross-check: blind grading and adversarial audit
Final verification and publication gate: Codex · Evidence date: 2026-09-07 · Corrections: none
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Cite this verdict

Stand-Alone Single-Leg Standing for Falls—An Exclusion-Sensitive Signal With Null Fracture and Overall BMD Results Evidence Grade C card
[Chamgap] Stand-Alone Single-Leg Standing for Falls—An Exclusion-Sensitive Signal With Null Fracture and Overall BMD Results — Evidence Grade C·50. 4 cited sources checked. Source: https://chamgap.com/en/verdicts/joint-bone/single-leg-standing-alone-falls-high-risk-older-adults/ · 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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