With regards to psychomotricity, there are two main child aspects to be developed:
global motor skills
fine motor skills
Global motor skills stimulate the entire general aspects of the body, such as learning to stand in balance.
Then, the physical exercises will lead to a better psychometric coordination, and help the child to better feel his body and use it in the most possibly adequate way.
As to fine motor skills, they stimulate child’s creativity and enable him to control his fingers, hands and eyes in a better way.