Martial arts · Upper legs

Front kick

Target Hip flexors  ·  Equipment Body weight  ·  Level Intermediate  ·  Reps 5

Front kick is a intermediate-level martial arts movement targeting the hip flexors, 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. Chamber0.5s · ease-in Drive the right knee up to chamber the kick
2. Extend0.35s · ease-out Snap the lower leg out: strike with the ball of the foot
3. Re-chamber0.45s · ease-in Snap the foot back to chamber
4. Return0.6s · ease-out Set the foot back down to a fighting stance

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 "Front kick"
  rig humanoid
  pose start = standing

  step "Chamber" 0.5s ease-in:
    hip_right: flex 95
    knee_right: flex 90
    cue "Drive the right knee up to chamber the kick"

  step "Extend" 0.35s ease-out:
    hip_right: flex 100
    knee_right: flex 5
    cue "Snap the lower leg out: strike with the ball of the foot"

  step "Re-chamber" 0.45s ease-in:
    hip_right: flex 95
    knee_right: flex 90
    cue "Snap the foot back to chamber"

  step "Return" 0.6s ease-out:
    hip_right: flex 0
    knee_right: flex 0
    cue "Set the foot back down to a fighting stance"

  repeat 5

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