Abstract A descriptive study purpose showed the restraining device to limit the child’s motion arm in intravenous (IV) therapy designed for preventing them from “child’s restrained arm IV therapy syndrome” (anxiety, pain, fear and sadness). Describing it required an observation and documentation of marked signals upon the child’s body, which were discussed under the standpoint of several sciences (physics, psychomotricity, psychology and biomechanics) by seeing the arm like a leverage system. The study result pointed to the knowledge needs stemming […]