ABSTRACT
Early studies of children’s motor development were aimed at describing the movement patterns of children at different ages, as they gradually acquire the motor competencies that are characteristic of the human adult. Some of the best known studies concentrated on infant competencies such as locomotion and grasping (Ames, 1937; Halverson, 1931; McGraw, 1940, 1941; Shirley, 1931), and preschool achievements such as throwing, skipping, and jumping (Bayley, 1935; Gesell et al., 1940; McCaskill & Wellman, 1938).
