WorkoutReplayAI: Form Check Coach
AI analyzes gym workout videos in real-time to detect form mistakes and suggest corrections before injury happens
The Problem
Most gym-goers either lift with bad form (risking injury) or rely on expensive personal trainers ($50-150/session). Phone cameras can record, but there's no accessible tool that actually analyzes the video and gives immediate, actionable feedback on posture, range of motion, and alignment.
Target Audience
Solo gym lifters (18-45) who train at home or commercial gyms and want injury prevention without hiring a coach; secondary: CrossFit boxes and personal trainers wanting to scale form checks
Why Now?
Mobile AI inference is now fast enough to run pose detection locally; Gen-Z lifters are more tech-comfortable and injury-aware than previous generations; gyms post-COVID are packed with untrained lifters
What's Missing
Existing fitness apps track reps/sets but ignore form; pose detection exists but isn't packaged for gym-specific exercises; personal trainers don't scale. There's no 'Grammarly for lifting'
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