Want to master the back extension — the essential posterior chain strengthener? You're in the right place.

The back extension is a fundamental exercise for strengthening your erector spinae, glutes, and hamstrings. ChAIron's AI coaching ensures proper form for maximum posterior chain development and spinal health.
ChAIron's computer vision analyzes your push-up form in real-time, providing instant feedback on:
Perfect your exercise technique with real-time feedback and personalized coaching. Start training today and build strength with every rep!
