We reconsider the development of motor skills in childhood, both in general terms and in relation to sports, through the application of a unique and innovative methodological system, PSI.CO.M. All our proposals work on the cognitive component along with the physical capabilities. Our work has an impact on both the development of physical activity and the mental performance of those who practice it. While our work is mostly applicable during childhood, it can also be extended to different age groups or even adapted to work with older adults.