Join the waitlist
How it works

From client list to measured gait in one consult

What a session looks like, step by step, and how to get a clean recording.

  1. Set up the capture

    Open the client and tap New Gait Capture. Choose Treadmill or Overground, the camera view (side, rear or front), and the footwear.

    ~10 seconds

  2. Record

    Phone level at knee height, 2–3 m away, whole leg and foot in the frame. Record at up to 240 fps.

    a few seconds of gait

  3. Slow it down

    Play back at 1×, ½, ¼ or ⅛ speed, or step frame by frame. The skeleton follows hips, knees, ankles, heels and toes.

    on the iPhone

  4. Measure, export

    Read the 2D knee, hip and shank angles. Export the video with the skeleton drawn on, and the CSV data.

    when you are ready

1 · Open the client

2 · Setting, view, footwear

3 · Record

4 · Slow it down, measure

5 · Export

Screens recreated from the app's interface. Demo clients and drawn figures, not real people.

iPhone on a tripod beside a clinic treadmill, filming a runner's legs from the side
Good recordings

Tips for a clean capture

  • Put the phone on a stand, level, at knee height.
  • Side view: 2–3 m away, the whole leg and foot in the frame.
  • Rear or front view: 2–3 m behind or in front, both heels and knees in the frame.
  • Shorts help. Loose clothing hides the knee and hip.
  • Light the client from the front, not from behind.
  • Let the client settle on the treadmill before you record.
  • Use the same set-up each visit, so sessions compare.

Photo is an AI-generated illustration.

What the skeleton shows

One stride, four moments

Knee 9°Initial contactKnee 13°MidstanceKnee 9°Toe-offKnee 40°Swing
Illustration. Angles are computed from the drawing, not from a person.

Knee angle

Flexion of the knee, from the hip, knee and ankle points.

Hip angle

Thigh angle from the hip and knee points.

Shank (tibia) angle

Angle of the lower leg to vertical, from the knee and ankle points.

These are 2D measurements from one camera view. Camera position changes them. Gait Positive is a measurement and video tool. It does not diagnose. Clinical judgement stays with the clinician.

Waitlist · clinic beta

Join the waitlist

Gait Positive is in TestFlight beta now. It is not on the App Store yet. We are adding clinics in small groups, Australia first. Tell us about your clinic and we will be in touch.

  • Founding clinic pricing
  • Video stays on your iPhone
  • Direct line to the podiatrist who builds it