Exploring for the Skill of the Double Skip in Jump Rope among Elementary School Children

Abstract

PURPOSE: Double skip in jump rope is one of a difficult subject for elementary school children; however, no study is available on analysis of the skill of double skip. The purpose of this study is to explore in the skill of double skip. METHODS: Eighteen study subjects were assigned into three study groups (A, B, and C group). A group was with five children who were unable to perform double skip. B group was with three children who were able to perform double skip only one time. C group was with ten children who perform double skip more than two times. All subjects were 4th grade children. After performing two times front jump rope for preparation, all of the subjects were asked to perform double skip. Performances were recorded with a high speed camera and the movement of the jump rope was analyzed using the Frame-DIASII(DKH, c.o, Japan). RESULTS: The average of maximal velocity of the rope was 24.18m/s in A group, 26.20m/s in B group, and 27.10m/s in C group respectively. No statistical significance was found among the three groups. The average velocity of A group was 20.92m/s, and it was significantly slower than B group (23.97m/s), and C group (23.74m/s). The average time for one cycling of the rope of C group was 0.25s that was significantly shorter than A group (0.31s), and B group (0.28s). CONCLUSIONS: As for A group, increasing the average velocity enabled to perform double skip. As for B group, hastening time for one cycling of the rope enabled to perform double skip for more than two times.