| Project/Area Number |
26350759
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Sports science
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| Research Institution | Tokai Gakuen University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
Kurosu Masahiro 東海学園大学, スポーツ健康科学部, 講師 (60469054)
Nakata Yuki 日本保育サービス (20728224)
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| Research Collaborator |
Amano Masato トライデントスポーツ医療看護専門学校
Chuman Kentaro 株式会社ジュビロ
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2015: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | adolescence / peak height age / acceleration / step length / soccer player / 発育発達 / 思春期 / スプリント / ピッチ / ステップ長 / ジュニアスポーツ / 疾走能力 / 歩幅 / 接地時間 / 縦断分析 |
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| Outline of Final Research Achievements |
In the study, 417 male junior soccer players were measured during the adolescent growth spurt to investigate the relation between development in ability of sprint acceleration (time for 20-m sprinting) and height growth. To this end, changes in step length and pitch, with relation to height growth, from the start to 8th steps in a 20-m sprint were followed for 2 years.
Reduction in the 20-m time was attained mainly by increase in the step length, which was a direct result from height growth. In contrast, inter-individual difference in the ability largely depended on how much a player could increase the pitch. In addition, it is suggested that to maintain higher ability in acceleration a junior player must maintain a higher pitch regardless of lengthening in lower limbs. So far, training methods such as how to run faster during adolescence have been recommended based on increase in step length; however, a different way of thinking might be needed for sprint acceleration at this age.
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