The avatar begins the 'thread the needle' movement. The thoracic spine starts a segment-by-segment spiral rotation while the lumbar spine remains stable. Off-screen voiceover (all characters have their mouths closed, no one is speaking on screen): Voice: Professional, calm male voice with a clear medical authority and steady instructional pace.. Narrator: "First the thoracic vertebrae turn..."...
Free to start · Generate videos and images with AI in seconds
