Biomechanical Analysis of Development of Shock Absorbability on Landing for Boys and Girls

男女生着陆时减震能力发展的生物力学分析

• 批准号: 63450095
• 负责人: MIYAZAKI Yoshinori
• 金额: $ 3.14万
• 依托单位: Tokyo Gakugei University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-63450095/
• 关键词: Shock absorbability; Developmental stage; Ground reaction force; Cinematography; Electromyography; Landing; とび降り動作; 発達; 児童; 地面反力記録

The purpose of this study was to investigate the developmental characteristics of shock absorbability on landing for boys and girls. Sixty of 6-, 8-, 10-, 12-, 14- and 16- year-old boys and girls and 10 male and female university students were participated as subjects. They performed landing on force plate softly from step heights of 30% and 60% of their body heights. The movement and forces of landing were recorded and analyzed by means of cinematography, electromyography and force plate method. As the results, it was shown that the shock absorbability on landing were developed with aging by increasing of shock absorption time in growing stage. Such results may have been caused by large angular displacement of ankle, Knee and hip joints and high muscular activities of knee extensors on landing. The lowering of shock absorbabilty were shown for boys and girls from 12-year-old to 14-year-old, however, probably due to remarkable growing of physiques.

本研究旨在探讨男、女学童著地冲击吸收能力的发展特点。60名6、8、10、12、14和16岁的男女儿童和10名男女大学生作为受试者参加了研究。他们从他们身体高度的30%和60%的台阶高度轻轻地在测力板上着陆。采用电影摄影、肌电图和测力板法记录和分析落地动作和落地力。结果表明，随着老化的进行，飞机着陆时的冲击吸收能力也随着增长阶段冲击吸收时间的增加而提高。这种结果可能是由于踝关节、膝关节和髋关节的大角度位移以及膝伸肌在着陆时的高肌肉活动引起的。12 ~ 14岁男女儿童的减震能力均有所下降，但这可能与体格发育的显著性有关。

项目成果

宮崎 義憲他4名: "幼児の着地衝撃緩衝能について" 体育科学. 18. (1991)

宫崎义德等4人：“关于婴儿的冲击缓冲能力”《体育科学》18。（1991）

Yoshinori, Miyazaki: "Development of shock absorbability on landing for elementary school children." Tokyo Gakugei University Research. 42. 131-138 (1990)

宫崎吉典：“为小学生开发着陆时的减震能力。”

Yoshinori, Miyazaki: "Impact absorbability on landing for preschool children," Report of Research Center in Physical Education,. 18. 140-148 (1990)

宫崎吉典：“学龄前儿童着陆时的冲击吸收能力”，体育研究中心报告。

宮崎 義憲 他4名: "児童における着地衝撃緩衝能の発達について" 東京学芸大学紀要 第5部門. 第42集. 131-138 (1990)

宫崎义典等 4 人：“儿童着陆冲击缓冲能力的发展”东京学艺大学学部通报第 5 卷第 42 卷 131-138（1990 年）

宮崎義憲: "児童期における衝撃緩衝能の発達に関する運動学的検討" 東京学芸大学紀要. 第42集. (1990)

宫崎芳德：“儿童时期冲击缓冲能力发展的运动学研究”东京学艺大学通报第42卷（1990年）。