Education · Shoulders

Shoulder abduction

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

Shoulder abduction is a beginner-level education movement targeting the deltoids, written in Posecode, a small open-source language that LLMs like ChatGPT, Claude, and Gemini can write to describe human movement as text. Every joint angle below is hard-clamped to a safe range of motion.

How to do it

1. Abduct2.5s · ease-in-out Arms sweep out and up to the sides: frontal-plane abduction
2. Adduct2.5s · ease-in-out Lower back to the sides through the same arc

The .posecode source

This is the exact text an LLM writes to produce the animation above: phases and joint angles, not 3D transforms.

posecode stretch "Shoulder abduction (ROM demo)"
  rig humanoid
  pose start = standing

  step "Abduct" 2.5s ease-in-out:
    shoulders: abduct 160
    cue "Arms sweep out and up to the sides: frontal-plane abduction"

  step "Adduct" 2.5s ease-in-out:
    shoulders: abduct 0
    cue "Lower back to the sides through the same arc"

  repeat 4

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