文献一覧: 寺田新 (著者)

3 0 0 0 OA スポーツ栄養における脂質の活用

著者: 寺田新
出版者: 公益社団法人日本油化学会
雑誌: オレオサイエンス (ISSN:13458949)
巻号頁・発行日: vol.18, no.8, pp.367-373, 2018 (Released:2019-09-02)
参考文献数: 26
被引用文献数: 1 2

多くのスポーツ選手は,脂質を体重増加につながりやすく,なるべく摂取すべきではないものとして捉えている。しかしながら最近,脂質によって運動後の筋グリコーゲンの回復が促進されることや,不活動に伴う筋萎縮が一部抑制されることが報告されており,脂質によってアスリートのパフォーマンスが向上する可能性が示されつつある。本総説では,スポーツ栄養における脂質の活用法に関する最近の知見を解説させていただく。

2022-05-28 15:12:26
3 + 15 Twitter

3 0 0 0 OA フルクトース摂取が長時間運動終盤における高強度運動時のパフォーマンスに及ぼす影響

著者: 寺田新大森一伸中村好男村岡功
出版者: The Japanese Society of Physical Fitness and Sports Medicine
雑誌: 体力科学 (ISSN:0039906X)
巻号頁・発行日: vol.48, no.3, pp.343-352, 1999-06-01 (Released:2010-09-30)
参考文献数: 34
被引用文献数: 4 4

The purpose of this study was to examine the effect of fructose ingestion on maximal exercise performance capacity following prolonged steady-state exercise compared with glucose or placebo ingestion, in 7 male college students (age 23.3±0.7 yr, height 171.3±1.9 cm, weight 68.4±1.4 kg, Vo2max 3.5±0.2 L/min, mean ± SEM) . The subjects cycled constantly on an ergometer at 59± 2 % Vo2max for 100 min divided in the middle by a 5-min rest, and then performed 10 min of all-out self-paced cycling. They ingested either 8 % fructose solution (F), 8 % glucose solution (G) or artifi-cially sweetened placebo (P) before and during exercise (at 20, 40, 65, 85 mm) . Before exercise and at 50 and 100 min of exercise and 5 min after the performance ride, blood samples were collected for determination of the concentrations of blood lactate, serum glucose and serum FFA. In the G trial, the serum FFA level was significantly lower than in the P and F trials at any of the time points dur-ing and after exercise (vs. P ; p<0.01, vs. F ; p<0.05) . However, glucose ingestion maintained serum glucose at a significantly higher level during and after exercise than placebo ingestion (p< 0.01) and improved the total work output in the 10-min performance ride (G vs. P ; 135± 8 KJ vs. 128± 8 KJ, p<0.05) . Although in the F trial, the serum FFA level was elevated during exercise compared to that in the G trial and the serum glucose level was significantly higher than in the P trial (vs. P ; p<0.01), the blood lactate level after exercise was lower than in the G trial and total work output was similar to that in the P trial (123± 8 KJ, vs. G ; p<0.01) . These results indicate that fructose ingestion before and during exercise cannot improve the ability to perform high-intensity exercise late in prolonged exercise despite maintaining the serum glucose level.