Key numbers
549
Adults aged 18 to 99 in the Springer eyes-closed reference study
What Systematic recommends
Where to start
- Stand next to the wall or stable surface with bare feet flat on the ground.
- Reach to the wall with two fingertips, using only very light contact.
- Keep your eyes focused straight ahead on your chosen visual point.
- Maintain awareness of the tripod points of contact through the standing foot.
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.
How your balance system works
Balance is not one sense. Your nervous system keeps you upright by continuously combining information from your eyes, your inner ear (the vestibular system) and the sensors in your skin, muscles and joints, and by shifting how much it relies on each. Vision is one of the major sources.
What changes when you close your eyes
Closing your eyes removes visual input. That puts more demand on the information that is left and on your body's strategy for staying upright: the nervous system has to give more weight to the inner ear and the body's own sensors, and reorganize how it controls posture. An eyes-closed stance shows how well balance holds up under that greater reliance.
Taking vision away does not isolate the feet. An eyes-closed result on the Systematic single-leg test is not a measure of the sensors in the sole of the foot alone, and it does not diagnose a problem with any one sensory pathway.
Eyes-closed balance across the lifespan
Springer and colleagues timed one-leg standing with eyes open and closed in 549 adults aged 18 to 99. Eyes-closed times showed a strong decline with age, and the study found no relationship between gender and performance.
Their published values are the best of three trials, a different design from the Systematic test. They are useful reference data, not Systematic scores.
Research on aging and leg proprioception (the sense of where your leg is) also reports that people rely more on vision for balance as they get older.
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.
-
Underlying-capacity evidence
Peterka (2002). Sensorimotor Integration in Human Postural Control. Journal of Neurophysiology.
What it found. Describes balance as the continuous combining and reweighting of visual, inner-ear and body-sense information. When vision is removed, the nervous system gives more weight to what remains and reorganizes postural control.
What it does not show. It did not study the Systematic test, and it does not show that eyes-closed balance isolates the feet or points to one sensory pathway.
-
Normative/reference evidence
Springer et al. (2007). Normative Values for the Unipedal Stance Test with Eyes Open and Closed. Journal of Geriatric Physical Therapy.
What it found. In 549 adults aged 18 to 99, eyes-closed one-leg standing declined strongly with age, with no relationship to gender.
What it does not show. Its values are best-of-three times from a different trial design, so they are reference data, not Systematic standards.
-
Underlying-capacity evidence
Henry et al. (2019). Age-related changes in leg proprioception: implications for postural control. Journal of Neurophysiology.
What it found. Reports greater reliance on vision for balance with age.
What it does not show. It did not time eyes-closed single-leg standing and does not validate the Systematic test.
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.