著者

久米 大祐 喬 穎 中山 珠里 保川 清 島尻 佳典 伊東 昌章

出版者

Japan Society of Nutrition and Food Science

雑誌

日本栄養・食糧学会誌 (ISSN:02873516)

巻号頁・発行日

vol.74, no.1, pp.15-20, 2021 (Released:2021-02-27)

参考文献数

13

被引用文献数

1

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本研究では, シマグワ (Morus australis) 葉から製造したパウダーを配合したパン (シマグワパン) の血糖値上昇抑制効果を検証することを目的とした。実験1では, シマグワパンの機能性解析として, 1-デオキシノジリマイシン (1-DNJ) 含有量, α-アミラーゼ[3.2.1.1]およびマルターゼ[3.2.1.20]阻害活性を評価した。実験2では, 健常成人を対象として同パンの食後血糖値上昇に対する抑制効果を検証した。実験1の結果, 製パン時に1-DNJ含有量は減少するものの, シマグワパンには1-DNJが残存していることが示された。シマグワ葉パウダーにα-アミラーゼ阻害活性は認められなかった。シマグワパンは, シマグワ葉パウダーそのものよりもマルターゼに対する50%阻害濃度は高値を示すものの, マルターゼ阻害活性を保持していた。実験2の結果, シマグワパンを摂取した後は, 通常のパンを摂取した後よりも, 血糖値およびインスリン値の上昇が抑制された。本研究の結果から, シマグワパンの血糖値上昇抑制効果が明らかとなった。

著者

西脇 雅人 小田 啓之 尾井 直矢 久米 大祐

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.72, no.3, pp.215-225, 2023-06-01 (Released:2023-05-10)

参考文献数

34

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Single-tooth sandals under new development have special material and shape characteristics. Exercises with single-tooth sandals can increase pressing stimulus on the soles of the feet, thereby suppressing a decline in medial longitudinal arch and elevating sole surface temperature. This study thus aimed to examine the effects of exercise with single-tooth sandals on medial longitudinal arch and sole surface temperature. Sixteen young adults (23 ± 5 years) participated in 20 min of stepping exercise on the spot. They randomly put on a regular normal sandal (N conditions) or a single-tooth sandal (Z conditions) on each left and right side. Before and after exercise, medial longitudinal arch and sole surface temperature were assessed by digital caliper and straightedge and thermography, respectively. No significant differences in baseline parameters were observed between N and Z conditions. After exercise, arch height and arch height ratio significantly reduced in N conditions, but not in Z conditions. Central sole surface temperature in Z conditions also increased significantly, and the changes in surface temperature were significantly higher in Z conditions than in N conditions. Therefore, these findings suggest that exercise with single-tooth sandals has a positive effect on a suppressing decline in medial longitudinal arch and an elevation in sole surface temperature.

著者

川勝 佐希 國土 将平 笠次 良爾 長野 真弓 森田 憲輝 鈴木 和弘 渡邊 將司 上地 広昭 山津 幸司 堤 公一 辻 延浩 久米 大祐 石井 好二郎

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2018, no.78, pp.43-60, 2018 (Released:2018-08-07)

参考文献数

54

被引用文献数

1 1

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A survey was conducted to assess physical activity, depression, and sense of coherence among early adolescents. This study used a cross-sectional sample of 12,086 students (G5-G9) from 28 public elementary schools and 22 public junior-high-schools in Japan. A total of 9,424 students (G5-G8) were surveyed from December 2013 to December 2015 using the International Physical Activity Questionnaire (IPAQ) -short form to measure physical activity (PA), the Depression Self-Rating Scale for Children (DSRSC) for depressive symptoms, and the Sense of Coherence Scale-13-item version (SOC-13). Vigorous PA (VPA) of the G5 boys (4h 20 min) was significantly longer than that of the G5 girls (1h 30min) and the VPA of the junior-high-school students increased significantly compared with that of the elementary-school students. The VPA of the G8 boys reached 6h 30 min, whereas that of the G8 girls approached 3h, which was a significant difference. Additionally, more junior-high-school students participated in sports-club activities than did elementary-school students. The mean DSRS-C score of the G5 girls (10.24±5.73) was significantly higher than that of the G5 boys (9.31±5.31). No other differences by grade, were found among the elementary-school students. The depressive symptoms of the junior-high-school students indicated they had a greater risk for depression than the elementary-school students did. The mean SOC score of the G8 boys (44.58±8.11) was higher (better) than that of the G8 girls (43.46±8.30). Furthermore, the elementary-school students' score on the SOC was higher than that of the juniorhigh-school students; the score tended to decrease as the grade increased.