How to do a 30-second stand test at home

2 September 2026 · How-to · 6 min read

A stand test is the simplest measurement in this whole area: you stand as still as you can for half a minute while something records how much you move. The test is easy. Doing it the same way every time is the hard part, and it's the only part that decides whether your numbers are worth looking at.

Before you start: set up once, reuse forever

Everything that varies between tests shows up in the result and looks like a change in your balance. So the goal is to freeze as many variables as you can, once, and then never think about them again.

• Pick one spot and keep it. A hard, level floor is ideal. Carpet, rugs and springy floorboards all change how your feet feel the ground. Whatever you choose, choose it permanently.
• Stand near something solid. A kitchen counter, a doorframe, the back of a heavy chair — close enough to grab, not close enough to lean on. Non-negotiable.
• Decide on footwear. Barefoot or socks-free on a non-slip floor is the most consistent, because shoes vary. Whatever you pick, use the same thing every time.
• Choose a time of day. Morning tends to be more consistent than evening, when fatigue accumulates. Pick a slot you'll actually keep.
• Quiet the room. No TV, no one walking past, no dog. Startles are noise in the data.

The stance

The most common version is a quiet stance with feet together: heels close, toes lightly apart, arms hanging relaxed at your sides. That's a good default, because it's difficult enough to produce a measurable amount of sway but stable enough to be safe.

Detail matters more than it sounds:

• Arms down, still, not crossed. Crossed or moving arms change how your body counterbalances, and if you're measuring from a wrist, they change the signal directly.
• Eyes open, fixed on one point. Choose a mark on the wall at eye level, roughly two to three metres away, and stare at it. Not the floor — looking down tilts your head and changes what your inner ear reports.
• Weight even, knees soft. Don't lock your knees. Locked knees make you stiff and can make you feel faint.
• Breathe normally. Holding your breath is a classic instinct during a stillness test and it makes things worse, not better.

Making it harder, later

Once feet-together becomes trivially easy, you have two dials. Narrow the base: move to a semi-tandem stance (one heel beside the other foot's big toe), then a full tandem stance (heel directly in front of toe), then eventually a single-leg hold. Remove vision: close your eyes, which takes away an entire input channel and is a substantially harder test.

Two rules about progressing. First, change one dial at a time. Second — and this is the one people ignore — a harder stance is a different test. Its scores are not comparable to your old ones. If you switch, you're starting a new baseline, so keep running your original stance alongside it for a few weeks if you want the history to stay readable.

The thirty seconds

Start your timer, or start the test in the app, and then:

1. Settle into position and take one normal breath before the recording begins. Don't start mid-fidget.
2. Fix your gaze on your mark and keep it there. Eyes wandering around the room adds motion.
3. Stand. Let your ankles do their small corrections without trying to suppress them.
4. Don't talk, don't count out loud, don't check your watch. Looking at your wrist mid-test is the single most common way people ruin a wrist-measured result.
5. When it ends, hold position for a beat rather than immediately stepping away.

Thirty seconds is long enough to capture a stable picture of your sway and short enough that fatigue doesn't creep in and change what you're measuring halfway through. If you want more confidence in a single day's result, run two or three tests with a short rest between them rather than one very long one.

Building a baseline

Your first test is not your balance. It's one sample from a distribution you haven't seen yet. Treat the first week or two as calibration:

• Days 1–7: test daily, same conditions. You're learning your normal range — including how far your numbers move when literally nothing has changed.
• After that: two or three times a week is plenty. More frequent testing mostly adds noise, not information.
• Give it a month before drawing conclusions. Balance changes are slow. A single low score after a bad night's sleep is not a trend.

The most useful habit is jotting down anything unusual — new shoes, a cold, a hard workout the day before, a long flight. When a number looks strange, that note usually explains it, and you'll save yourself a week of unnecessary worry.

Five mistakes that quietly wreck your data

1. Testing in different places. Kitchen tile one day, bedroom carpet the next. This alone can move a score more than a month of training does.
2. Looking at your wrist during the test. It moves your arm, your head and your gaze all at once. Wait for the haptic or the timer.
3. Testing right after exercise. Post-workout balance is genuinely worse, and it isn't the number you meant to record.
4. Chasing a single bad score. One low reading is noise. Re-test tomorrow rather than immediately retrying until you get a number you like — repeated retries bias your whole history upward.
5. Changing the stance without noting it. Feet together in March and tandem stance in April is two datasets, not one trend.

Where an app helps

You can run this test with a stopwatch and a notebook, and if you're disciplined, that works. What a wrist sensor adds is a consistent measurement instead of a subjective impression, and a record that builds itself. Steady's version of the test paces the thirty seconds with haptics so you never look at the screen, reads your sway from the Apple Watch's motion sensors, and turns it into a 0–100 score with your personal baseline and trend attached — so you can see your range rather than one number at a time.

Whichever way you record it, remember what the result is: a description of how much you moved while standing, on one particular day, in one particular spot. It's a way to notice change over time. It isn't a diagnosis, it doesn't screen for or predict anything, and it doesn't replace a professional assessment. If something feels off — new unsteadiness, dizziness, a fall — that's a clinician's question, not a score's.