Abstract
There has been conducted a longitutidal study of schoolchildren’s physical status and psychomotor development during three years at the beginning of each academic year with participation of same first-form schoolchildren of a secondary school in Arkhangelsk. On the whole, there have been examined 76 schoolchildren (37 boys and 39 girls) at the age 7-9 y. o. An analysis of the study results has shown heterochronia and inequality of psychomotor development of the northern children at the age 7-9 years with different levels of physical fitness, what, probably, depended on individual features of functional maturation of the brain structures. Comparative monitoring has detected better formedness of praxes in the children with a medium physical fitness level, what showed bigger maturity of the motor analyzer in comparison with the children who had a low physical fitness level.
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