Fitness · Upper legs
Body-weight squat
Body-weight squat is a beginner-level fitness movement targeting the quadriceps, 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.
▶ Open Body-weight squat in the playground →How to do it
- Descend1.6s · ease-in-out Sit the hips back, chest proud, knees track over the toes
- Drive up1.2s · ease-out Drive through the heels to stand tall
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 "Body-weight squat"
rig humanoid
pose start = standing
step "Descend" 1.6s ease-in-out:
hips: flex 80
knees: flex 95
ankles: dorsiflex 14
spine: flex 20
shoulders: flex 70
neck: extend 10
ground-lock: feet
cue "Sit the hips back, chest proud, knees track over the toes"
step "Drive up" 1.2s ease-out:
hips: flex 0
knees: flex 0
ankles: dorsiflex 0
spine: flex 0
shoulders: flex 0
neck: extend 0
ground-lock: feet
cue "Drive through the heels to stand tall"
repeat 8