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Center HoldModerate
Head Nod Up-Down Hold
ANVA_CENTERHOLD
AF-CH-27
- Setup / stance
- Feet hip-width, eyes open
- Focus
- Vertical vestibular challenge
- Instruction
- “Keep your body still. Slowly look down, then up, while keeping the dot near the center.”
- Coaching cue
- Slow nod, no trunk movement
- Primary metrics
- AP sway, corrections
- Progression / regression
- Smaller nod / slower speed
- Safety / guarding
- Guard instability