Free AI Lunge Form Check
Do 5 reverse lunges (alternating). Get your form score and your #1 fix.
Reverse lunges · ~60s · Camera permission required
What we check
Six biomechanical signals, scored from your camera in real time.
- Front-knee tracking over toes
- Hip squareness
- Torso position
- Step length
- Knee-to-floor distance
- Push-off symmetry
How it works
- Step 1
Set up your camera
Phone propped against a wall, or laptop on a table. Hip-height, 6–8 feet back, full body in frame.
- Step 2
Do five reps
Five strict reverse lunges. Take it at your own tempo. KinesteX tracks joint coordinates on-device.
- Step 3
Get your score and fix
A 0–100 form score plus the single most important correction to work on.
On-device. We don’t see your video.
KinesteX runs the form-check model in your browser. The frames never leave your device — we only see anonymous joint coordinates and the resulting metrics. Nothing is recorded. Nothing is uploaded. Close the tab and it’s gone.
What your result looks like
A score, the fix, and the metrics behind it.
Form score
Tighten your form
Stay tall, control the tempo, and breathe through the rep.
Frequently asked
Privacy, accuracy, equipment.
Reverse lunges put less stress on the front knee. Better starting point for women 40+.
Back knee a few inches off the floor. No need to touch.
No.
Very normal. Mira flags asymmetry so you can address it.
Hold a wall or chair lightly for support. Form first.
Both. They train different patterns.
2–3 sessions, 6–10 reps per leg.
Take the quiz for your free 7-day plan.
Try another form check
Ready to see your score?
Five reverse lunges. 60 seconds. A 0–100 score and the one thing to fix next.