Balance and Fall-Risk Assessment

Unsteadiness can be measured. We measure it across every system that produces it — inner ear, sensation in the feet, circulation, cognition and movement — because a fall is almost never caused by only one of them failing.

The fall is a moment. The cascade is the injury.

Most of the harm from a fall is not the fall. It is what follows: an injury, then a reasonable fear of falling again, then less walking, then less muscle, then worse glucose control and worse circulation, then worse nerve function and worse balance — and a higher chance of the next one. The loop tightens on itself.

What people actually lose along the way is not measured in any of that. It is driving. Stairs. Showering without help. Going out in the evening. Staying in their own home. These get given up one at a time, usually quietly, and usually without anyone in the medical system being told. By the time it surfaces, it surfaces as a fracture.

The bill does not land only on the person who fell. A working-age daughter cuts her hours. A spouse who was managing their own conditions starts managing two. Someone who drove themselves to appointments now needs a ride to them, and quietly misses the ones nobody can drive them to. Insurance pays without argument for the hip and the rehabilitation, and hesitates over the hour of testing that would have identified the failing component while it was still correctable. Function lost in one household is absorbed by several.

Three systems hold you upright, and they fail quietly

Balance is a continuous negotiation between the balance organs of the inner ear, position sense coming up from the feet and legs, and vision. The brain compares all three. Any one of them can degrade substantially while the other two cover for it, which is exactly why the loss is invisible until conditions change — a dark hallway, a patterned floor, a wet surface, standing up too fast.

So the useful question is not whether you have a deficit. It is how much reserve you have left. That cannot be answered by testing one system.

What gets measured, and what each part rules out

• Videonystagmography (VNG) — the inner ear and its central connections, read through eye movement. Separates a peripheral loss, which is often rehabilitable, from a central pattern that means the workup goes elsewhere.
• Kinetisense [Gait Analysis for Fall Analysis] motion analysis — markerless capture of how you actually stand, shift weight, rise from a chair and walk. It measures the finished output, after every system has compensated as best it can.
• Cognivue [Cognitive and Memory Testing] cognitive assessment — attention and processing speed, which determine whether you catch a stumble or simply arrive on the floor. Cognitive testing is a standard component of fall-risk assessment for this reason.
• Small fiber and autonomic testing — the fibers carrying sensation from the sole, and the ones that hold blood pressure up when you stand. A silent orthostatic drop is a fall mechanism on its own. See small fiber neuropathy.
• Ankle–brachial index and vascular flow — because cold, numb, painful feet are not always nerve, and circulation and nerve need entirely different treatment.
• EMG and nerve conduction studies — where weakness originates. A foot that catches on the carpet can be a peripheral nerve, a nerve root at the spine, or muscle, and only electrodiagnostic testing tells them apart. See cervical radiculopathy and spinal stenosis.

Why we assess across disciplines instead of sending you around

Fragmented referral is the default and it fails this specific patient. The ear goes to audiology, the feet to podiatry or neurology, the memory to primary care. Three appointments, three waits, three reports — and each one reasonably concludes that what it examined is only mildly abnormal. Nobody is looking at the sum, and the sum is the diagnosis.

The interaction is the finding. A mild vestibular loss is unremarkable on its own. Mild sensory loss in the feet is unremarkable on its own. Slightly slowed processing speed is unremarkable on its own. The person carrying all three at once has almost no margin left, and no single specialist is positioned to see it. That is a structural problem with how care is organized, and running the assessment under one roof is how we work around it.

The published balance-testing literature arrives at the same place from the research side: a brief test is fine for screening, but a battery is needed for a genuine assessment.

The metabolic terrain underneath

Nerve, small vessel, inner ear and brain are not four unrelated organs that coincidentally fail in the same person. They share a blood supply and a metabolic substrate. Small vessels and small nerve fibers register a metabolic problem first and get examined last, which is how someone is told their labs look fine while three balance systems are already eroding.

So the assessment does not stop at the balance organs. Glucose handling and insulin resistance, B12 and vitamin D, blood pressure regulation, muscle mass and vascular flow are part of it, because they are upstream of everything the balance tests measure downstream. Insulin resistance runs years ahead of a diabetes diagnosis and a routine glucose test will not see it. Metformin depletes B12. Lost muscle takes with it both the strength to catch yourself and part of the body’s own inflammatory regulation.

Treating the readout buys time. Treating the terrain changes the direction. See can diabetic neuropathy be reversed.

After a crash, or a head injury

Balance complaints after a motor vehicle accident get attributed to the neck, to the concussion, or to anxiety, and often to whichever was written down first. Any of those may be right. But a crash can also disturb the inner ear directly, and post-concussion dizziness, cervical injury and vestibular injury produce overlapping symptoms with different treatments.

Measuring rather than assuming matters more here than almost anywhere else, because these cases carry documentation consequences as well as clinical ones. An objective recording is a different kind of evidence than a description of feeling unsteady. See accident and injury care and post-concussion symptoms after an accident.

What the results actually change

The output is a map of which systems are carrying you and which have stopped. That drives four separate decisions: what can be rehabilitated, such as a peripheral vestibular loss, where the exercises are specific to the side and the canal involved; what is medical, such as an orthostatic drop, a deficiency, or glucose doing damage below the diabetic threshold; what is structural, such as a nerve root or a stenosis that electrodiagnostic testing has localized; and what is environmental, because once we know you are running on vision, lighting and floor surface and footwear stop being general advice and become part of the treatment.

We repeat the measurements as well, and they are numbers rather than impressions — a risk-of-fall percentage, a mobility index, cadence, sway and gait velocity, each also set against normative values. One reading is a snapshot. The trajectory across visits, and whether anything we did bent it, is the part that matters.

Who should be assessed

Anyone with peripheral neuropathy, particularly diabetic neuropathy. Anyone who has fallen or nearly fallen in the last year. Anyone with dizziness, lightheadedness on standing, or a persistent sense of being off balance that has never been properly sorted out. Anyone recovering from a crash or a head injury. And anyone whose medication list has grown long enough that nobody has recently asked what the whole of it is doing to their steadiness.

No referral is required, and we see Missouri Medicaid patients. Call (314) 310-5577 or text (314) 886-5902.

Common questions

Balance training is the component with the most direct effect on falls, and the one usually left out.

Sources

• de Oliveira Lima RA et al. Efficacy of exercise on balance, fear of falling, and risk of falls in patients with diabetic peripheral neuropathy: a systematic review and meta-analysis. Archives of endocrinology and metabolism, 2021. PubMed 33905633
• Alissa N et al. A Systematic Review of the Effect of Physical Rehabilitation on Balance in People with Diabetic Peripheral Neuropathy Who are at Risk of Falling. Clinical interventions in aging, 2024. PubMed 39050517
• Korkusuz S et al. Balance and gait in individuals with diabetic peripheral neuropathy. Neurological research, 2024. PubMed 37712608
• Elafros MA et al. Towards prevention of diabetic peripheral neuropathy: clinical presentation, pathogenesis, and new treatments. The Lancet. Neurology, 2022. PubMed 36115364