According to The World Health Organization health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity. Fitness is a synonym for health. Physical fitness is considered one of the most important health markers. Physical fitness is defined as a set of personal properties: body composition, cardiorespiratory endurance and motor skills such as speed, flexibility, muscular strength, endurance, coordination and balance. Physical fitness is the ability to perform work and daily workloads without tiring too quickly, with enough energy to enjoy recreational activities in free time and satisfaction with life's needs. We are studying pupils in the lower grade of primary school (7-10 years). By enrollment in school, children take anthropological characteristics of the third part development period called the school children period. This is the longest period of children's development in primary school, finishing by the end of third grade. The second period called pre-pubescent, starts gradually in fourth grade. Pupils are being developed in morphological, functional and motor views. Talking about motor development, pupils are going through sensitive phases. These are phases when it is possible to influence pupil abilities highly. This work aims to determine the motor skills of pupils that can be effectively developed by analysing the available literature.