Why Is My Balance Worse Now?

Written by the Nuvirox Research Team

Short answer: yes, balance genuinely declines with age for most people, and it is measurable well before anyone notices falling. The body keeps itself upright by constantly blending input from three separate systems — vision, the inner ear’s vestibular organs, and pressure/position sensors in the joints and muscles — and researchers have documented age-related decline in all three, plus a slower reaction time in the muscles that correct a wobble once one is detected.¹ None of that means balance loss is inevitable or untrainable; it is one of the more responsive systems to targeted exercise, which is exactly why so much fall-prevention research focuses on balance training rather than medication.

Why is standing on one leg suddenly so much harder?

The one-legged stance test is a favorite in balance research precisely because it strips away the redundancy that makes standing on two feet forgiving. With both feet on the ground, if your inner ear input is slightly degraded, your visual and joint-position systems can compensate almost seamlessly. Standing on one leg removes that margin. A large longitudinal study using the one-legged balance test in a British birth cohort found it to be a reliable, sensitive screening tool for fall risk in midlife and beyond, precisely because it exposes small deficits that two-legged standing hides.² Researchers comparing older adults with a recent fall history to those without found measurable differences in center-of-pressure sway during one-legged stance between the two groups, even though both groups could technically complete the test.³

What is actually declining — is it my inner ear, my eyes, or my muscles?

Usually some combination of all three, plus a fourth factor: how quickly the brain can integrate the three signals and issue a correction. Muscle strength matters more than people expect — one study assessing balance alongside grip and leg strength in older versus younger adults found reduced lower-extremity strength correlated with reduced balance scores, and a biomarker of muscle damage (skeletal troponin) tracked negatively with balance performance.⁴ That finding lines up with a broader pattern in the research: balance loss with age is not purely a "wiring" problem in the brain or inner ear, it is also a strength and reaction-time problem in the muscles that execute the correction once a wobble is detected.

What human research actually shows

A case-control study of 170 older adults (mean age 67) directly compared postural sway during one-legged stance between people who had fallen in the past 12 months and those who had not. Using a force platform, the researchers measured center-of-pressure area and velocity during three 30-second one-legged trials per person. Fallers showed significantly poorer balance measures than non-fallers (P ≤ 0.004), and the authors proposed specific cutoff values that could help identify at-risk individuals before a fall occurs rather than after.³

A separate study using performance-based testing in the Baltimore Longitudinal Study of Aging found that failing tandem or single-leg stance tests, combined with reduced quadriceps and hamstring strength, predicted future falls over a roughly 2.5-year follow-up. Importantly, the honest counterweight here is that these were the strongest predictors among several tested measures, but no single test was perfectly predictive on its own — the researchers emphasized combining multiple simple assessments (strength, gait, and standing balance) rather than relying on any one number.⁵

What worsening balance does not automatically mean

A gradual decline in how long you can hold a one-legged stance, or feeling less sure-footed on uneven ground, fits the ordinary pattern of age-related change and is common by midlife. It is a different situation if balance problems appear suddenly, come with a spinning or whirling sensation (vertigo), affect one side of the body more than the other, or are accompanied by slurred speech, double vision, or numbness — those patterns point toward inner-ear disorders, a vascular event, or a neurological cause and need prompt medical evaluation rather than a home exercise program.

What actually helps

Balance is one of the more trainable physical systems, and the research on this is consistent: structured balance and strength exercise reduces fall risk in older adults more reliably than almost any single supplement or medication. Practical starting points include single-leg stance practice near a stable support, tai chi (one of the most studied fall-prevention interventions), and general lower-body strength work, since strength and balance were shown to move together in the research above. A vision check and a review of any medications that affect balance (some blood pressure and sleep medications do) round out a sensible approach. Ankle and joint flexibility play a supporting role too — see our piece on why ankles stiffen with age.

FAQ

How long should I be able to stand on one leg? There is no single universal number, since it depends heavily on age and testing conditions, but a large and sudden drop from your own baseline, or an inability to hold it for even a few seconds with eyes open, is more meaningful than comparing yourself to a generic chart.

Is balance decline reversible? Research consistently shows balance responds to targeted training, even in older adults who have already noticed a decline — it is one of the more trainable aspects of aging physiology.

Does inner ear balance loss cause dizziness too? It can, and the two often overlap. If unsteadiness comes with a spinning sensation, that is a different symptom pattern worth mentioning to a clinician specifically as "vertigo" rather than general imbalance.

Should I worry if I only notice it on uneven ground? Struggling more on uneven or dim surfaces while feeling fine on flat, well-lit ground is a very common and less concerning pattern, since it reflects the redundancy of the three balance systems being tested at once.

From Nuvirox

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The bottom line

Balance decline is a real, measurable, and well-studied part of aging, driven by gradual changes in vision, the inner ear, joint-position sense, and muscle strength working together. The honest caveat from the research is that no single test predicts falls perfectly, which is exactly why combining strength and balance assessments — and training both — works better than focusing on one. Sudden or one-sided balance changes are a different story and deserve a prompt evaluation. See our related piece on why standing up can trigger dizziness for a look at the blood-pressure side of balance.

References

1. Alfieri FM, et al. A multimodal assessment of balance in elderly and young adults. PMC. PMCID: PMC4924642.
2. Blodgett JM, et al. One-Legged Balance Performance and Fall Risk in Mid and Later Life: Longitudinal Evidence From a British Birth Cohort. Am J Prev Med. 2022.
3. Aguiar SA, et al. One-legged stance sway of older adults with and without falls. PLoS One. 2018. PMCID: PMC6840013.
4. Age-Related Alterations Affecting Postural Balance. PMCID: PMC11548656.
5. Narrow Walk, Semi-Tandem, Tandem, and Single Leg Stance Test Failure Could Predict Falls in Older Adults. Baltimore Longitudinal Study of Aging. PMCID: PMC12234881.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This article is for informational purposes only and is not a substitute for professional medical advice.