United Hacks V7 Β· Sports Track
FormCoach AI watches your training through your webcam and coaches you live β and it does something no fitness app does: the Movement Twin learns your best rep and coaches you against yourself, with measured corrections like βdepth 12Β° short of your best.β Voice in, voice out β designed for complete eyes-free operation. No video ever leaves your device.
One coach, every layer of training β live in your browser.
Your best rep becomes your baseline: a ghost skeleton to race, and measured deviations β βtorso leaned 13Β° more than your bestβ β whenever you fall short of yourself.
Spoken coaching cues, hands-free commands, and real conversation: ask βwhat should I fix first?β mid-set and hear the answer. Designed for eyes-free training.
When form degrades rep after rep, the coach names the exact rep the decline began β and tells you to rest before bad reps pile up.
Strength (squat, push-up, curl, shoulder press with lockout & back-arch safety check) and conditioning (jumping jacks with a full-extension check) β each drill has its own joint-angle state machine.
Upload a video, or screen-capture a playing YouTube clip β the same engine overlays the skeleton and coaches the athlete live.
Biomechanics, injury-risk, programming and progress agents write an explainable readiness report β generated by Claude or a fully local LLM via Ollama.
Email + password sign-in where the password never leaves the device and your history is AES-256 encrypted. No server, no database, nothing to breach.
Athletes train privately in their own browsers; the coach sees sessions, trends and risk flags for the whole squad behind an access key.
Google MediaPipe (full model) tracks 33 body landmarks at ~30fps, entirely on your device via WebAssembly + GPU.
Joint angles run through per-exercise state machines with EMA smoothing, anti-blip guards and visibility gating.
Each rep starts at 100 and loses points for depth, alignment and stability faults β flagging common form-risk patterns. A coaching aid, not a medical diagnostic tool.
Your best repβs metrics become your private baseline; every rep is measured against it, and deviations are spoken in degrees.
Your camera feed physically cannot leave the browser β a live counter proves it, and DevTools verifies it. Local-only mode sends nothing at all.
DON'T GUESS.
MEASURE.
Every rep, scored. Every fault, in degrees. Every athlete, against their own best.
Start training β