plank-jacks

name	plank-jacks
description	Performs plank jacks, holding a plank while jumping the feet apart and back together. Use when the command mentions plank jacks, plank jumping jacks, or plank feet in and out.
category	exercise
disable-model-invocation	true
subskills	["move-leg","move-torso","balance-and-posture"]

plank-jacks

Hold a forward-hinged plank on the hands and toes, then jump the feet wide and back together (leg abduction) on a loop while the upper body stays put. A root.y hover, not a floor posture.

How

• Plank base: Spine:[80,0,0],Chest:[10,0,0]; arms down (*UpperArm:[120,0,0], slight elbow), on toes (*Foot:[60,0,0]), root.y:-0.12.
• Feet apart: abduct legs (LeftUpLeg:[0,0,150],RightUpLeg:[0,0,-150]).
• Feet together: legs back to [0,0,180]. Loop.

Example

• "do plank jacks" -> {"durationMs":2200,"say":"Plank jacks.","sequence":{"loop":true,"frames":[{"t":0,"pose":{"Spine":[80,0,0],"Chest":[10,0,0],"LeftUpperArm":[120,0,0],"RightUpperArm":[120,0,0],"LeftForearm":[0,0,-15],"RightForearm":[0,0,15],"LeftFoot":[60,0,0],"RightFoot":[60,0,0],"LeftUpLeg":[0,0,180],"RightUpLeg":[0,0,180]},"root":{"y":-0.12}},{"t":0.5,"pose":{"LeftUpLeg":[0,0,150],"RightUpLeg":[0,0,-150]}},{"t":1,"pose":{"LeftUpLeg":[0,0,180],"RightUpLeg":[0,0,180]}}]}}