What kind of stability is needed to hold a set joint position against resisitance for an isometric muscle action?

To hold a set joint position against resistance for an isometric muscle action, concentric stability is required. Concentric stability refers to the ability of a joint to resist external force and maintain its position without the need to elongate or shorten within its range of motion. In isometric muscle actions, the muscle maintains its length and generates tension without causing any significant joint displacement.