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The 10-second balance test that predicts survival

Each row is one study of death risk from balance test. The bright line is what that study found. The band around it is the range the data still supports — it fades where the evidence thins. Left of the centre line is lower risk.

what the study foundstill plausibleno change
Two groups compared
the whole gap between a high and a low
inability vs ability to perform a static balance test (adjusted meta-analysis)
Das et al. 2024
14% higher
range 7–21% higher
One step at a time
what each single increase is worth
each 1-point higher SPPB balance subtest score
Silva et al. 2022
46% lower
range 19–64% lower

What it is

The one-legged stance test asks you to balance on a single leg for 10 seconds — a quick proxy for neuromuscular health and fall risk.

Why it matters for longevity

This calculator uses Araujo et al. 2022: in 1,702 CLINIMEX clinic volunteers aged 51–75, inability to complete a 10-second one-legged stance had adjusted all-cause mortality HR 1.84 (1.23–2.78) over a median 7 years. A 2024 meta-analysis of 15 cohorts (Das et al.) pooled inability to complete a static balance test at HR 1.14 (1.07–1.21) — mixed tests, not only one-leg stance (I² 88%). The CHARLS paper on this page (Xie) is a 10-second semi-tandem stand, a different and easier test. The engine has not been moved off Araujo.

How to improve it

  • Practice single-leg stands daily (near support)
  • Add balance and mobility work to workouts
  • Strengthen ankles, hips and core

Evidence, by endpoint

EndpointGradeFinding
All-cause mortality (10-second one-leg stand, pass/fail)C
10 Seconds (Araujo 2022)
Failing a 10-second one-legged stand: adjusted all-cause HR 1.84 (1.23–2.78) over a median 7 years. That is the number this calculator uses.
All-cause mortality (inability to perform static balance test)C
Pooled static tests are smaller (Das 2024)
A 15-cohort meta of mixed static-balance tests (not one-leg only) pooled at HR 1.14 (1.07–1.21), I² 88%. Engine not retuned.
Loss of independence or death (composite)C
2.17x, But a Composite Endpoint (Hirayama 2025)
In 3,278 community-dwelling Japanese adults 65+ (Aizu Cohort), a weaker-leg one-leg-stand under 10 seconds carried HR 2.17 (1.67–2.84) versus 30+ seconds — but the outcome is a composite of loss of independence or death, not all-cause mortality alone.
All-cause mortality (semi-tandem stand time, per second)B
Semi-Tandem, Not One-Leg (Xie 2023)
CHARLS cohort of 18,888 middle-aged and older adults tested a 10-second semi-tandem stand, not the one-leg stand this calculator asks about — a different balance construct. Passing (≥10 s) vs failing carried ACM HR 0.61 (0.44–0.85), though only 1% of the cohort (156 people) failed; each additional second of stand time carried HR 0.90 (0.85–0.95).
All-cause mortality (composite functional-test battery)C
Part of a Composite Battery, Not Isolated (Rikkonen 2018)
Population-based cohort of 2,815 postmenopausal Finnish women, mean baseline age 59, 18.3-year follow-up, 473 deaths: women failing any one of three functional tests — a 10-second one-legged stand, squatting to the floor, or bottom-quartile grip strength — carried 50% higher all-cause mortality (HR 1.5, 95% CI 1.3–1.8) than women failing none. The one-legged-stand failure alone was the strongest single predictor of hip fracture, but the mortality figure is for the combined battery.
All-cause mortality (SPPB balance subtest, per point)B
Each SPPB Point Is 46% Lower Risk (Silva 2022)
Longitudinal study of 411 community-dwelling Brazilian older adults (mean age 70), roughly 3-year follow-up: each one-point higher score on the Short Physical Performance Battery’s balance subtest — a graded score, not this calculator’s pass/fail — carried 46% lower all-cause mortality (HR 0.54, 95% CI 0.36–0.81).

What argues against this

No source in this set reverses the direction of the balance-mortality association. The strongest disagreement is on magnitude: Das 2024's 15-cohort meta of mixed static-balance tests pools to a much smaller adjusted all-cause HR of 1.14 (1.07–1.21) than the engine's single-clinic-cohort Araujo 2022 estimate of 1.84 (1.23–2.78), suggesting the true population-level effect of failing a static balance test may be considerably weaker than the engine's calibration source implies.

Last reviewed 2 September 2026

Evidence

  1. Araujo et al. (2022) — British Journal of Sports Medicine
    Successful 10-second one-legged stance performance predicts survival in middle-aged and older individuals
    View source
  2. Das et al. (2024) — Research on Aging
    Performance in a Balance Test and Prediction of All-Cause Mortality in Community-Dwelling Elderly Ambulatory Individuals: A Systematic Review and Meta-analysis
    View source
  3. Xie et al. (2023) — Frontiers in Public Health
    Balance ability and all-cause death in middle-aged and older adults: A prospective cohort study
    View source
  4. Hirayama et al. (2025) — Journal of the American Medical Directors Association
    Association of Shorter Secondary One-Leg Standing Time with Loss of Independence or Death in Community-Dwelling Older Adults in the Aizu Cohort Study (LOHAS)
    View source
  5. Rikkonen et al. (2018) — Osteoporosis International
    Long-term effects of functional impairment on fracture risk and mortality in postmenopausal women
    View source
  6. Silva et al. (2022) — PeerJ
    Short physical performance battery as a predictor of mortality in community-dwelling older adults: a longitudinal study in the Brazilian Amazon region
    View source
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