Physiotherapy · Neck

Neck rotation

Target Neck  ·  Equipment Body weight  ·  Level Beginner  ·  Reps 4

Neck rotation is a beginner-level physiotherapy movement targeting the neck, written in Posecode, a small open-source language that capable language models can use to describe human movement as text. Authored joint targets and reach-IK solves are constrained to Posecode's configured per-axis bounds. Those bounds constrain the visualization, but they do not certify that a complete movement is safe or clinically correct. This page documents a code example; it is not exercise instruction.

Movement phases

Phase cues are display-only coaching text. The executable joint and contact directives in the source below determine the animation.

1. Look right2s · flow Turn slowly to look over the right shoulder
2. Look left2.4s · flow Pass through center and turn to the left
3. Center1.6s · settle Return the head to neutral

The .posecode source

This is the exact text used by the linked playground animation: phases and joint angles, not 3D transforms.

posecode stretch "Neck rotation"
  rig humanoid
  pose start = standing

  step "Look right" 2s flow:
    neck: twist-right 60
    ground-lock: feet
    cue "Turn slowly to look over the right shoulder"

  step "Look left" 2.4s flow:
    neck: twist-left 60
    ground-lock: feet
    cue "Pass through center and turn to the left"

  step "Center" 1.6s settle:
    neck: twist-left 0
    ground-lock: feet
    cue "Return the head to neutral"

  repeat 4

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