HEAD_TOP = 0
NECK = 1
SHOULDER_RIGHT = 2
ELBOW_RIGHT = 3
WRIST_RIGHT = 4
SHOULDER_LEFT = 5
ELBOW_LEFT = 6
WRIST_LEFT = 7
HIP_RIGHT = 8
KNEE_RIGHT = 9
ANKLE_RIGHT = 10
HIP_LEFT = 11
KNEE_LEFT = 12
ANKLE_LEFT = 13
PELVIS = 14
SPINE = 15
HEAD = 16
