@misc{Rodziewicz-Gruhn_Joanna_Zmiany, author={Rodziewicz-Gruhn, Joanna and Szymanek, Marta and Połacik, Joanna}, howpublished={online}, publisher={Zielona Góra: Lubuskie Towarzystwo Naukowe}, language={pol}, abstract={The aim of the paper was to determine the level of motor development and changes in motor performance in children from rural areas from Częstochowa region (Silesia Province) examined in the years 1999 and 2012.}, abstract={The research included boys and girls aged 7-9 from primary schools in Wręczyca Wielka Commune in Kłobuck County (Silesia Province). The first study was conducted in November in the school year 1999/2000 and embraced 270 students (135 girls and 135 boys); the same number of students - 270 students (135 girls and 135 boys) - was examined in the school year 2012/2013.}, title={Zmiany w sprawności motorycznej wśród uczniów klas I-III ze środowiska wiejskiego w województwie śląskim w latach 1999-2012 = Changes in motor performance among 1st, 2nd and 3rd class primary school students from rural areas in silesia province in the years 1999-2012}, type={artykuł}, keywords={boys, girls, motor performance, motor abilities, chłopcy, dziewczęta, sprawność motoryczna, zdolności motoryczne}, }