Learn

The 7 dimensions of running form we measure on every video. Each page explains what we're looking at, why it matters, and how to fix it when it's off.

Posture & Lean

How forward (or backward) you lean from the ankles while running.

3–12° forward lean

Overstriding

Landing with your foot ahead of your hips creates a braking force every step.

<20% of frames landing ahead of hips

Vertical Oscillation

How much your body bounces up and down each step.

<6 cm bounce per stride

Hip Drop

The non-stance hip dropping below level — a sign of weak glute medius.

<2% left-right asymmetry

Arm Swing

Symmetric arm swing balances your stride and helps drive cadence.

>85% symmetry

Knee Mechanics

Knee flexion at stance — too straight means braking, too bent means quad-dominant.

140–165° average knee flexion

Foot Strike

Heel, midfoot, or forefoot — what part of your foot hits the ground first.

No fixed target — context for overstriding

Get your grade across all 7

Upload a 10-second side-view clip and see exactly where your form stands, plus drills targeted at your weakest areas.

Analyze my stride