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Investigation of specific lifestyle factors that contribute to an increase in bone mass of schoolchildren: a longitudinal study

Research Project

Project/Area Number 23700836
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Applied health science
Research InstitutionKitasato University (2014)
Yamanashi Prefectural University (2011-2013)

Principal Investigator

YAMAKITA MITSUYA  北里大学, 一般教育部, 講師 (40582143)

Project Period (FY) 2011-04-28 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords最大骨量 / 生活習慣 / 運動 / 身体活動 / カルシウム / 睡眠 / 思春期 / 骨強度 / カルシウム摂取
Outline of Final Research Achievements

Childhood and adolescence are important periods for gaining bone strength, which affect life-long bone health (e.g., peak bone mass). The lifestyle during this period strongly contributes to preventing osteoporosis.The purpose of this study was to determine specific lifestyle factors that contribute to an increase in bone strength (i.e., an increase in peak bone mass). The stiffness index (stiffness) of the calcaneus was measured with quantitative ultrasound, and lifestyle was evaluated with a questionnaire.
The present study results suggested that physical activity (PA) strongly affected bone mass gain during childhood and adolescence, and continuing PA for >=7 h/wk (approximately >=60 min/day) from a young age may be effective in increasing peak bone mass. Further robust studies that analyze each age group using consistently validated measurement instruments are needed.

Report

(5 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (7 results)

All 2015 2014 2013 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (4 results) Book (1 results)

  • [Journal Article] A longitudinal study of changes in physical activity and calcaneus quantitative ultrasound measurement over a 2-year period in Japanese schoolchildren2015

    • Author(s)
      山北満哉,佐藤美理,安藤大輔,鈴木孝太,山縣然太朗
    • Journal Title

      Japanese Journal of Physical Fitness and Sports Medicine

      Volume: 64 Issue: 1 Pages: 183-193

    • DOI

      10.7600/jspfsm.64.183

    • NAID

      130004909076

    • ISSN
      0039-906X, 1881-4751
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Availability of a simple self-report sleep questionnaire for 9- to 12-year-old children2014

    • Author(s)
      Yamakita M, Sato M, Ando D, Suzuki K, Yamagata Z
    • Journal Title

      Sleep and Biological Rhythms

      Volume: 12 Issue: 4 Pages: 279-288

    • DOI

      10.1111/sbr.12072

    • Related Report
      2014 Annual Research Report 2013 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 小学生女子における踵骨超音波骨量指標と運動時間の関連

    • Author(s)
      山北満哉,佐藤美理,安藤大輔,鈴木孝太,山縣然太朗
    • Organizer
      第68回日本体力医学会
    • Place of Presentation
      東京
    • Related Report
      2013 Research-status Report
  • [Presentation] 小学生女子における1年間の骨量変化と運動時間との関連

    • Author(s)
      山北満哉,佐藤美理,安藤大輔,鈴木孝太,山縣然太朗
    • Organizer
      第72回日本公衆衛生学会
    • Place of Presentation
      三重
    • Related Report
      2013 Research-status Report
  • [Presentation] 小学生に対する簡便な身体活動質問項目の妥当性と信頼性

    • Author(s)
      山北満哉,佐藤美理,安藤大輔,鈴木孝太,山縣然太朗
    • Organizer
      第67回日本体力医学会
    • Place of Presentation
      長良川国際会議場
    • Related Report
      2012 Research-status Report
  • [Presentation] 小学生に対する簡便な睡眠質問項目の妥当性と信頼性

    • Author(s)
      山北満哉,佐藤美理,安藤大輔,鈴木孝太,山縣然太朗
    • Organizer
      第71回日本公衆衛生学会総会
    • Place of Presentation
      サンルート国際ホテル山口
    • Related Report
      2012 Research-status Report
  • [Book] 運動生理学‐生理学の基礎から疾病予防まで2013

    • Author(s)
      小山勝弘・安藤大輔:(編),山北満哉,北川淳,小野悠介,藤田諒(共著)
    • Total Pages
      186
    • Publisher
      三共出版
    • Related Report
      2013 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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