Moving Hold
A moving hold is the slight bit of motion a character has while they are in a pose. If there is an absolute hold, a complete static pose that lasts several frames, the a 3D character immediately feels lifeless. Even if it is something small as breathing, there should never be a total absence of movement.
- Keith Lango's Tutorial on moving holds.
- Moving Hold - Bobby Beck (Pixar Animator)
- What Is a Moving Hold? by Shawn Kelly on (animationmentor.com