주기사항
영문초록 : I have picked up 15 sprinters from elementary, middle and highschools, and rendered a two-dimensional analysis on such item as the change of speed in reaction to the change of position, the highest speed span, speeding span, and slowing span. The Conclusions are as follows. 1. All the sprinters marked the highest speed between 40m~50m, and their average speeds in that span are 7.587m/sec for the elermentary school sprinters, 8.701m/sec for the middle, and 9.621m/sec for highs. 2. More specifically, the elementary school sprinters marked their highest speed in 25.82m~49.79m span, the middles in 41.35m~50.93m, and the highs in 43.69m~65.O8m. the higher is the record, the father is the highest speed span from the start-line. 3. The average speeding spans are 37.18m for the elementary sprinters, 46.41m for the middies, and 49.37m for the highs. This shows that the sprinters with higher records have longer speeding span. The highest speed duration spans are 59.14m for the elementarys, 36.03m for the middles, and 25.94m for the highs, and this shows that the higher is record, the shorter is the highest speed duration span. The average slowing spans are 11.84m for the elementarys, 27.99m for the middles, and 24.68m for the highs. This slowing span didn't show any relation with the record.