Key numbers
5.03 seconds
Mean gain in eyes-open one-leg standing time vs control, programs combining multiple exercise types, older adults (Howe 2011)
0.50
Hazard ratio for all-cause mortality, best vs worst one-leg stance fifth, adults 65+ in Taiwan (Wu 2026)
What Systematic recommends
Where to start
- Stand next to a wall or rigid surface that will not give way with bare feet flat, bring attention to tripod points through the foot, briefly lock the standing knee then unlock to a soft active position, reach with two fingertips using very light contact.
- Keep eyes focused straight ahead on a fixed visual point directly in front of you, maintain awareness of tripod points, keep standing knee soft and active, stand tall and breathe normally, lift inside foot approximately 6–12 inches off ground, use as little fingertip pressure as possible.
- Practice 3 sets, begin with a 10-second hold, progress in 10-second increments toward a 30-second hold, use as little fingertip contact as you can comfortably control, gradually reduce pressure and briefly break contact when controlled. If you become too unsteady or movement feels uncomfortable, take a step back and return to a level that feels achievable, comfortable, manageable and well controlled.
Condensed from the published Development Pathway (Single-Leg Balance: Two Finger Wall-Assist Tripod Stand). This is a starting point, not a training program or medical advice.
What it measures
Systematic uses this test for single-leg postural control: keeping your body organized over a small base of support. It draws on how your ankles, hips and trunk work together to control sway.
Your body keeps its balance by continuously combining three streams of information: vision, the balance organs of the inner ear, and the sense of position from your joints and skin. The test does not single out one of those, and it does not diagnose a problem with any of them.
Why closing your eyes changes the task
Vision is a major source of balance information. When it is removed, the nervous system has to lean more on the inner ear and the body's own sense of position, and reorganize how it controls sway. That is why the eyes-closed version is a different test from standing on one leg with your eyes open.
With age, research shows people rely more on vision, tend to tense opposing muscles around a joint at the same time, and change how they control their posture. Where the free foot is held also affects eyes-closed results, which is why Systematic standardizes it.
What the research shows, and what it does not
Araújo and colleagues (2022) studied whether people could stand on one leg for 10 seconds and found it was linked with survival. Their test used a different protocol, so it shows that balance matters for health, not that the Systematic test or its standards have been validated. Ten seconds is not a Systematic threshold, and the finding is about groups, not a prediction for one person.
In a study of adults aged 65 and older in Taiwan, those in the best fifth for one-leg standing had lower all-cause mortality than those in the worst fifth (adjusted hazard ratio 0.50, 95 percent CI 0.42 to 0.59). That is an association, not proof that better balance causes longer life, and it does not validate the Systematic battery.
Balance can be trained in older people. Programs combining multiple exercise types improved eyes-open single-leg standing time by a mean of 5.03 seconds compared with control (545 participants across 9 studies). Better balance on a test is not the same thing as fewer falls.
How Systematic scores it
This is Systematic's own protocol, not a copy of a published balance test, so published norms are not presented as Systematic norms: trial structure, hand and free-leg position, vision and time limits all differ.
There is no time cap. If you hold for well over a minute, the actual time is kept. Red, yellow and green are Systematic standards, scored by age only, and they are never shown while you are taking the test.
See the standards for your age and sex
The evidence
Each cited source is labeled according to how it supports the particular claim on this page. Direct test evidence, underlying-capacity findings and population reference values are distinguished from Systematic-defined protocols and standards. Historical development notes are retained internally rather than presented as public evidence. A study of an underlying capacity is never presented as validation of the Systematic test itself.
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Underlying-capacity evidence
Peterka (2002). Sensorimotor Integration in Human Postural Control. Journal of Neurophysiology.
What it found. Balance is maintained by continuously integrating visual, vestibular and somatosensory information and removing vision requires reweighting and reorganizing postural control.
What it does not show. It did not validate the Systematic eyes-closed exact protocol or provide Systematic scoring thresholds.
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Underlying-capacity evidence
Araujo et al. (2022). Successful 10-second one-legged stance performance predicts survival in middle-aged and older individuals. British Journal of Sports Medicine.
What it found. Authors studied 10-second one-leg stance and reported an association with survival in middle-aged and older individuals.
What it does not show. It did not validate the exact eyes-closed Systematic protocol and does not support a universal 10-second clinical threshold for Systematic.
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Underlying-capacity evidence New source
Wu et al. (2026). Physical Fitness and All-Cause Mortality in Older Adults. JAMA network open.
What it found. In Taiwanese adults aged 65 years or older, highest quintile of 1-leg stance had adjusted hazard ratio of 0.50 (95 percent CI 0.42 to 0.59) versus lowest for all-cause mortality.
What it does not show. It does not establish causation, does not show all seven fitness components predicted mortality, and does not validate Systematic's different battery.
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Underlying-capacity evidence New source
Howe et al. (2011). Exercise for improving balance in older people. The Cochrane database of systematic reviews.
What it found. This Cochrane review reported it for programs combining multiple exercise types: programs combining multiple exercise types improved eyes-open single-leg standing time by a mean of 5.03 seconds compared with control (545 participants across 9 studies).
What it does not show. It does not show uniformly high-certainty effects across all exercise types and does not equate improved balance-test performance with prevention of fall events.
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Underlying-capacity evidence
Henry et al. (2019). Age-related changes in leg proprioception: implications for postural control. Journal of Neurophysiology.
What it found. Research shows greater reliance on vision, increased antagonist coactivation and changes in postural strategy with age.
What it does not show. It did not measure the Systematic test or provide Systematic norms.
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Underlying-capacity evidence
Schneiders et al. (2016). Effect of foot position on balance ability in single-leg stance with and without visual feedback. Journal of Biomechanics.
What it found. Eyes-closed single-leg performance is sensitive to free-foot position.
What it does not show. It did not validate Systematic scoring thresholds.
The Systematic Healthspan Assessment is a physical baseline. It is not a diagnosis, and it does not estimate a biological age, a disease risk or a lifespan.