MYRUNFORM

Analyze
your stride.
Run
without pain.

Film yourself side-on for 5 seconds. Drop the video. MyRunForm measures 5 key parameters of your technique and tells you exactly what to fix. No account, no upload.

5 metrics measured
No server upload
Smartphone is enough
Result in 12 s

5 parameters.
One stride
dissected.

Each measurement maps to a documented failure point in running biomechanics. We extract key frames, compute angles and tell you what to change — no jargon.

/ 01
142°

Knee flexion

Angle of the support knee at ground contact. Too little transfers shock to the hip and back; too much wastes vertical energy.

Target · ≥ 15–20°
/ 02
11.2cm

Overstriding

Distance between your foot at contact and the vertical of your centre of gravity. Overstriding brakes every stride and multiplies shin and knee injuries.

Target · < 10% lower limb
/ 03
+9°

Trunk inclination

Angle of the torso from vertical. The right amount drives you forward without loading the lower back.

Target · 5–10° forward
/ 04
6.4cm

Vertical oscillation

Height of hip bounce between contacts. The less you bounce, the more energy goes forward.

Target · < 3–4% height
/ 05
238ms

Ground contact time

How long your foot stays on the ground. Short contact = reactive, economical stride.

Target · 160–200 ms
Backed by science

What the research says

Knee flexion

The effects of knee contact angle on impact forces and accelerations

Derrick, T.R. (2004) · Medicine & Science in Sports & Exercise, 36(5), 832–837

Greater knee flexion at foot strike reduces peak vertical impact forces — the basis for our ≥ 15-20° target.

Read the study
Overstriding

Effects of step rate manipulation on joint mechanics during running

Heiderscheit, B.C. et al. (2011) · Medicine & Science in Sports & Exercise, 43(2), 296–302

Increasing cadence (and reducing overstriding) lowers knee and hip joint loading at every footstrike.

Read the study
Trunk inclination

The effect of forward postural lean on running economy, kinematics, and muscle activation

Carson, N.M. et al. (2024) · PLoS ONE, 19(5), e0302249

A moderate forward lean stays the most energy-efficient; leaning too far forward worsens running economy.

Read the study

3 steps.
12 seconds.

No app to install, no sensor to wear. A smartphone, your browser, and 5 seconds of side-on running.

01

Film 5 s side-on

Place your phone at hip height, 3–4 metres away. Run past it. One take is enough.

02

Drop the video

Drag the file into the window. Analysis runs in your browser — the video never leaves your device.

03

Get the report

5 measured values, a comparison to the optimal zone, and 3 priority corrections to work on tomorrow.

Radical privacy

Your videos
never leave your
browser.

In local analysis, joint detection and angle computation run entirely in your browser via WebGL and WebAssembly. No image is transmitted, stored or hosted. You can even disconnect from the internet after the page loads.

No account, no tracking cookies. If you save or share an analysis, or choose the cloud option for more precision, the video is stored securely for 30 days and then automatically deleted.

01
video.mp4
local · 14 MB
02
pose-detection (wasm)
in-browser
03
analyse cinématique
in-browser
04
rapport.html
local
Server connection: 0 bytes sent
Frequently asked

Before you start

How does the analysis work?

The AI detects your body's key points frame by frame in your video, then computes 5 biomechanical angles and measurements: knee flexion, overstriding, trunk inclination, vertical oscillation and ground contact time.

What's the difference between local and cloud analysis?

Local analysis is free and runs entirely in your browser — instant result. Cloud analysis (€4.99, then unlimited for 24h) sends the video to a GPU server for more precise joint detection.

Are my videos stored?

In local analysis, the video never leaves your browser. If you choose the cloud option, or save/share an analysis, the video is stored securely for 30 days and then automatically deleted.

What equipment do I need?

A smartphone at hip height, 3-4 meters away, filming you side-on. No app or sensor to install.

How long does it take?

5 seconds of filmed running is enough. Local analysis is instant; cloud analysis takes 30 to 90 seconds.

Does this replace a session with a professional?

No — it's an objective measurement tool to spot what to work on, not a medical diagnosis. For pain or injury, see a healthcare professional.

Can I share my analysis?

Yes, a "Share" button on your report generates a unique link valid for 30 days, to send to whoever you want.

Fondateur de MyRunForm
The creator

Built by the founder of MyBikeFitting.

MyBikeFitting is the #1 online bike-fit platform in Europe, with tens of thousands of adjustments completed.

MyRunForm applies the same biomechanical rigour to running, with the same philosophy: a tool athletes can use themselves, anywhere.

#1
Online bike fit · Europe
25k+
fits completed
100%
free, no account
Discover MyBikeFitting
Ready?

Film.
Drop.
Improve.

No account, no download. Your next stride is better than your last.