Kinematic Characteristics of the Standing Long Jump in Young Children Aged 4–5 Years

IF 0.8 Q4 PSYCHOLOGY, DEVELOPMENTAL
Mana Ogawa, Chiaki Ohtaka, Motoko Fujiwara, H. Nakata
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引用次数: 2

Abstract

The authors investigated the kinematic characteristics of the standing long jump in preschool children. Sixty 4-year-old children (boys: 30 and girls: 30) and sixty 5-year-old children (boys: 30 and girls: 30) participated in the present study. The authors focused on three differences in kinematics: between 4- and 5-year-old children, between boys and girls, and between high and low jumping performance groups at the same age. The kinematic data included the maximum flexions of the knee and hip before takeoff, at takeoff, and on landing; angular displacement of the upper body; takeoff speeds in horizontal and vertical directions; and takeoff angle of the greater trochanter. Anthropometric variables and kinematic data were separately analyzed with factors of age, sex, and group. The authors also performed multiple regression analysis to identify predictors of the jump distance. The movement speed of the greater trochanter in a horizontal direction, the maximum flexion angle of the hip before takeoff, and the hip angle on landing were identified as significant predictors of the jump distance among young children. These findings suggest that knowing how to use the hip and awareness of the horizontal direction are key factors to improve the long jump distance in young children.
4-5岁幼儿立定跳远的运动特点
对学龄前儿童立定跳远的运动特点进行了研究。64岁儿童(男30岁,女30岁)和65岁儿童(男30岁,女30岁)参加了本研究。作者着重于运动学的三种差异:4岁和5岁儿童之间,男孩和女孩之间,以及相同年龄的高跳和低跳表演组之间。运动学数据包括起飞前、起飞时和着陆时膝关节和髋关节的最大屈曲度;上身角位移;水平和垂直方向的起飞速度;大转子的起飞角度。人体测量变量和运动学数据分别与年龄、性别和群体因素进行分析。作者还进行了多元回归分析,以确定跳跃距离的预测因子。大转子水平方向运动速度、起跳前髋部最大屈曲角度和起跳时髋部角度是幼儿起跳距离的重要预测因子。这些发现表明,了解如何使用臀部和水平方向的意识是提高幼儿跳远距离的关键因素。
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来源期刊
Journal of Motor Learning and Development
Journal of Motor Learning and Development Medicine-Orthopedics and Sports Medicine
CiteScore
2.20
自引率
15.40%
发文量
13
期刊介绍: The Journal of Motor Learning and Development (JMLD) publishes peer-reviewed research that advances the understanding of movement skill acquisition and expression across the lifespan. JMLD aims to provide a platform for theoretical, translational, applied, and innovative research related to factors that influence the learning or re-learning of skills in individuals with various movement-relevant abilities and disabilities.
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