butt-kicks

name	butt-kicks
description	Performs the butt-kicks fitness drill in place via a looping sequence that flicks each heel up toward the glutes by flexing the knee (no moveTo). Use when a command mentions butt kicks, butt-kicks, heel flicks, heels to butt, kick your heels up, or a hamstring warmup drill.
category	locomotion
disable-model-invocation	true
subskills	["move-leg"]

butt-kicks

The warmup where the heels flick up behind toward the seat — the knees flex hard while the thighs stay roughly under the hips. A looping sequence of alternating deep knee flexes (NO moveTo).

How

• Use a sequence with loop:true. Keep the hip near rest (UpLeg:[0,0,180]) and flex the KNEE strongly (Leg:[120,0,0]) so the heel comes up behind; alternate legs (the other knee straightens to Leg:[0,0,0]).
• Fast durationMs ~550–700. No moveTo.

Example

• "do butt kicks" -> {"durationMs":600,"say":"Heels up!","sequence":{"loop":true,"frames":[{"t":0,"pose":{"LeftUpLeg":[0,0,180],"LeftLeg":[120,0,0],"RightUpLeg":[0,0,180],"RightLeg":[0,0,0]}},{"t":0.5,"pose":{"RightUpLeg":[0,0,180],"RightLeg":[120,0,0],"LeftUpLeg":[0,0,180],"LeftLeg":[0,0,0]}},{"t":1,"pose":{"LeftUpLeg":[0,0,180],"LeftLeg":[120,0,0],"RightUpLeg":[0,0,180],"RightLeg":[0,0,0]}}]}}