Working in neutral postures is the optimal position of each joint that provides the most strength, the most control over movements, and the least physical stress on the joint and surrounding tissue.

• 不固定动作的工作（非重复动作的工作）是最佳姿势，这种姿势下，可以提供最大的力量，能最大的控制动作，并对关节和周围的组压力最小。