| Project/Area Number |
23700836
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Applied health science
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| Research Institution | Kitasato University (2014)
Yamanashi Prefectural University (2011-2013) |
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Principal Investigator |
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| 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)
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| 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 |
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| 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.
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