Relationship between body height with age and speed, agility, explosiveness and quickness development -Analysis on boys from childhood to adolescence-

Abstract

The purpose of this study was to investigate relationship between growth of body height and development of speed, agility, explosiveness and quickness in boys from childhood to adolescence. 3,863 boys aged from 3 to 22 years old were participated in this study. Height was used for physique and 20m dash, Pro agility test, side steps, standing long jump, vertical jump and rebound jump index were used for speed, agility, explosiveness and quickness. These items, along with the body height, were plotted on a logarithmic graph to obtain the allometric equation “y = bx^a”. As the results of calculating transition points, it was also shown by a linear function of the 4-phase with three transition points in any of the measurement items. Since the coefficient a from second transition point to third transition point was equal to or greater than 1, the development of muscle strength was speculated to contribute to the development of speed, agility, explosiveness and quickness. Further, since the coefficient a to the first transition point in all measurements showed a value of 1 or more, the improvement of the nervous system may contribute to the development of speed, agility, explosiveness and quickness.