Developmental sequences for the vertical cradle were hypothesized and tested using a prelongitudinal screening technique to determine comprehensiveness and developmental accuracy. Fifty-one 10- to 13-year-old children were videotaped as they ran and cradled over a flat surface. A total of 150 trials were categorized for seven components: basic rhythm, hand and arm action, stick position, top hand grip, stick head and top arm action, position of hands, and bottom arm and hand action. Lack of developmental variability occurred for the basic rhythm, hand and arm action, and hand position components. For the stick position component, more younger children were classified at the highest level than older children. The developmental sequence for the stick head and top arm component was comprehensive and age related. The role various constraints play in hypothesizing sequences of sport specific skills needs to be considered along with the quality and amount of instruction.
Kate R. Barrett, Kathleen Williams, Jill McLester, and Sara Ljungkvist are with the Department of Sport and Exercise Science at the University of North Carolina at Greensboro, 270 HHP Building, Greensboro, NC 27412.