Fitness · Core

Lying leg raise

Target Abdominals  ·  Equipment Body weight  ·  Level Beginner  ·  Reps 10

Lying leg raise is a beginner-level fitness movement targeting the abdominals, 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. Raise1.2s · ease-out Lift the straight legs toward vertical, low back pressed down
2. Lower1.4s · ease-in Lower the legs slowly without arching the back

The .posecode source

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

posecode exercise "Lying leg raise"
  rig humanoid
  pose start = supine

  step "Raise" 1.2s ease-out:
    hips: flex 90
    knees: flex 0
    cue "Lift the straight legs toward vertical, low back pressed down"

  step "Lower" 1.4s ease-in:
    hips: flex 20
    cue "Lower the legs slowly without arching the back"

  repeat 10

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