著者
荒尾 孝 稲山 貴代 北畠 義典 劉 莉荊 仲里 佳美 根本 祐太 大滝 裕美
出版者
早稲田大学
雑誌
基盤研究(C)
巻号頁・発行日
2008

小学5年生を対象に身体活動の促進および正しい食事の知識とスキルの習得を目標とした教育介入を実施した。その結果、介入終了直後では介入校で遊びに対する積極的な態度や、放課後に友人と遊ぶ頻度が増加し、総エネルギー消費量では対照校に比べて介入校は有意に高い水準が維持された。食生活については、食事バランスガイドの知識が増え、望ましい食事をとることの結果期待や自己効力感が向上した。しかし、介入終了1年後では、これらの変化のうち行動に関する効果は維持されない傾向が示された。
著者
高野 純平 藤井 範久 向井 直樹 劉 莉荊 林 和彦 白崎 芳夫 斉藤 慎一 徳山 薫平
出版者
一般社団法人日本体力医学会
雑誌
体力科学 (ISSN:0039906X)
巻号頁・発行日
vol.53, no.1, pp.123-130, 2004-02-01 (Released:2010-09-30)
参考文献数
25

Side to side difference in tennis players' mid-radius and cross-sectional study on mid-tibia of jumpers and sedentary controls suggest that the improvement of mechanical properties of cortical bone in response to long-term exercise is related to geometric adaptation and not to volumetric bone mineral density. In the present study, geometric and mechanical properties of right tibia were estimated along 64 directions centering center of gravity of the bone on cross-sectional peripheral quantitative computed tomography (pQCT) images. The tibias of 17 jumpers (7 females, 10 males) and 15 controls (8 females, 7males), aged 18-23, were scanned at mid site using pQCT. Periosteal and endocortical radius were larger, cortical thickness was thicker, and mechanical properties (moment of inertia of area and strength strain index) were greater in jumpers compared to those of controls. The differences in cortical thickness between the two groups were dependent on direction of measurement. Defined a direction from tibia's center of gravity to fibula's as 0°, difference in the cortical thickness between jumpers and controls was the greatest at around 240°. Along this direction, differences in mechanical properties were also the most significant, suggesting that the site-specific adaptation of bone to long-term exercise is due to geographical relation of bone to muscle.