Warm-up · Upper legs

Box step taps

Target Hip flexors  ·  Equipment Box  ·  Level Beginner  ·  Reps 6

Box step taps is a beginner-level warm-up 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. Right tap0.6s · ease-out Tap the right foot lightly on top of the box
2. Right down0.5s · ease-in Return the right foot to the floor
3. Left tap0.6s · ease-out Tap the left foot on the box
4. Left down0.5s · ease-in Back to the floor: keep a light, quick rhythm

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 "Box step taps"
  rig humanoid
  prop box
  pose start = standing

  step "Right tap" 0.6s ease-out:
    hip_right: flex 70
    knee_right: flex 90
    cue "Tap the right foot lightly on top of the box"

  step "Right down" 0.5s ease-in:
    hip_right: flex 0
    knee_right: flex 0
    cue "Return the right foot to the floor"

  step "Left tap" 0.6s ease-out:
    hip_left: flex 70
    knee_left: flex 90
    cue "Tap the left foot on the box"

  step "Left down" 0.5s ease-in:
    hip_left: flex 0
    knee_left: flex 0
    cue "Back to the floor: keep a light, quick rhythm"

  repeat 6

More warm-up movements