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That's not how workouts work, though. Each body is different, and people have different skill levels too. It's not like Just Dance

Using this type of method to check form makes a lot of sense. There were manny Kinect apps that did this.

Give a shot at wrnch.ai Disclosure I work there but people at hackathon can pull this off easily

That could be fun! I saw Sway app doing that for dance movements, but in fitness such tech for sure could be more useful.