sit-up

name	sit-up
description	Mimes looping sit-ups or crunches from a knees-bent floor position, curling the torso up and back with hands behind the head. Use when the command mentions sit-up, situps, crunches, or ab curls.
category	exercise
disable-model-invocation	true
subskills	["move-torso","move-leg"]

Sit-up

Stylized sit-up: sit low with knees up (deep root.y drop), hands behind the head, and rock the torso between leaning back and curling forward, on a loop.

How

• Setup: knees up (*UpLeg:[90,0,0], *Leg:[100,0,0]), root.y:-0.45; hands behind head (LeftUpperArm:[20,0,60],LeftForearm:[0,0,-130], RightUpperArm:[20,0,-60],RightForearm:[0,0,130]).
• Back (start): Spine:[-25,0,0], Chest:[-10,0,0].
• Up (crunch): Spine:[40,0,0], Chest:[20,0,0]. Loop between the two.

Example

• "do some sit-ups" -> {"durationMs":3000,"say":"Crunch!","sequence":{"loop":true,"frames":[{"t":0,"pose":{"LeftUpLeg":[90,0,0],"LeftLeg":[100,0,0],"RightUpLeg":[90,0,0],"RightLeg":[100,0,0],"Spine":[-25,0,0],"Chest":[-10,0,0],"LeftUpperArm":[20,0,60],"LeftForearm":[0,0,-130],"RightUpperArm":[20,0,-60],"RightForearm":[0,0,130]},"root":{"y":-0.45}},{"t":0.5,"pose":{"Spine":[40,0,0],"Chest":[20,0,0]}},{"t":1,"pose":{"Spine":[-25,0,0],"Chest":[-10,0,0]}}]}}