Upload two 40‑second accelerometer recordings — eyes open and eyes closed — and compare your postural stability side by side.
Get startedRecord & Upload
Use Sensor Logger with the phone held chest-height (crossed arms). Record ~40 seconds for each condition, then export the Accelerometer CSV.
Upload the CSV from your eyes‑open standing trial
Upload the CSV from your eyes‑closed standing trial
Comparison
Side‑by‑side analysis of postural stability. Larger divergence in the closed‑eye condition indicates stronger reliance on vision for balance.
Total sway √(x²+y²+z²) for both conditions on a common time axis (trimmed)
X vs Y acceleration — axes auto‑scaled to data range
X vs Y acceleration — axes auto‑scaled to data range
X, Y, Z channels for both conditions. Solid = eyes open, dashed = eyes closed
1‑second rolling window RMS. The shaded gap between curves shows where balance degrades with eyes closed
Overlaid histograms of sway magnitude
Positive values (red) = more sway when eyes are closed
Learn
Balance relies on three sensory systems working together. Explore the science behind the test.
Vision, the vestibular system, and proprioception combine to keep you upright. Learn how each contributes.
Neurological, sensory, and fatigue‑related factors that can affect postural stability.
A classic neurological exam for proprioception. Understand its clinical purpose and interpretation limits.
About
Romberger is an educational tool — not a diagnostic device. Record two standing trials, upload the CSVs, and see how removing visual input affects your postural stability. Inspired by the clinical Romberg test.