Runners on the road, seen from the side
All running gait analysisFor practices

A measurement your colleague can repeat in three months

You already watch people run. This records what you saw, in numbers that still mean the same thing at review: including when someone else does the review.

The problem is not the looking, it is the remembering

A trained eye sees a pelvis dropping. What an eye does not do is see it the same way three months later. The clip from then still exists; the impression does not. "It looks better" is not something you can evaluate a course of treatment on, let alone defend to a sceptical patient or an insurer.

This tool does the measuring. Four degrees of pelvic drop on the left and seven on the right is something you can come back to. What those numbers mean for this patient stays your judgement; the software says nothing about it, and that is deliberate.

Where it fits in a caseload

  1. 1

    At assessment

    Twenty seconds on the treadmill, two views if you can: sagittal and from behind. You have the baseline before you have changed anything, which is the only moment you can still get one.

  2. 2

    At review

    Same setup, same speed. The comparison shows what moved and, more usefully, what stayed inside the measurement noise. A difference smaller than the spread between stride cycles is not a difference.

  3. 3

    In the conversation

    The report has an explanatory section stating what each measure is. It is written to go through together, not to win an argument: there is no verdict on the patient’s values in it, only what the measure is.

  4. 4

    In a referral

    A six-page PDF with the measurement, its quality and the patient details in the header. To the sport and exercise physician or the GP, without retyping anything.

What it costs you in clinic time

Compute time depends on clip length and on the machine. Twenty seconds at 120 frames per second is around a minute on an ordinary laptop, and it runs while you do something else.

  • Recording: one to two minutes, with the camera already set up
  • Loading and computing: one to two minutes, in the browser
  • Reading the report: page one tells you whether the recording was sound
  • Going through it with the patient: as long as you want to spend

The notes stay yours, literally

The clip is processed in your browser and never reaches us. What goes to the server is coordinates: twenty-six points per frame, from which no image and no face can be reconstructed. Patient details travel only when you ask for a report, appear in that report’s header, and are never stored anywhere.

The records you build: who, when, which values, live in the browser you work in. That has a cost: a second machine starts empty, and clearing your browsing data clears your records. There is a single-file export, and the app asks for one as soon as the records grow. If you need them genuinely shared across rooms, the local installation on a practice server is the route.

What physiotherapists ask

Does it work without a treadmill?
Yes. A ten-metre runway works, as long as the camera is still and square to the direction of travel. You get fewer stride cycles per clip, and that shows up in the spread: fewer cycles means a less stable average, and the report states how many each value came from.
How small a change can I demonstrate?
It varies by measure and the report says so. The spread between stride cycles is the floor you can derive from a single clip. The app also tracks measured repeatability if you record the same person twice in quick succession, and then uses that threshold when comparing.
Can the report go in the clinical record?
It was built for it: patient details in the header, date, the measurement, the quality of that measurement and the clinician. What it lacks is a conclusion, because that is yours. Which is also why this is not a medical device.
And when the recording is no good?
Page one says so, with what was wrong and what to do about it. Frame rate too low, camera off-axis, a leg out of frame, too few cycles. A measurement you cannot trust is worse than none, so it does not get a green tick.
Is there an app for the tablet in the gym?
It runs in a browser, so a tablet opens it. The computation is heavy enough that a laptop or desktop is noticeably faster, so most practices record on a phone and process on a laptop.

Run one on a clip you already have

The first analysis is free and produces a complete report, no watermark. Then you can judge for yourself whether it belongs in your notes.

Get started

A measuring instrument, not a diagnosis. Interpretation rests with the clinician.

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