著者

足立 哲司 足立 博子 中井 聖 豊岡 示朗 増原 光彦

出版者

日本生理人類学会

雑誌

日本生理人類学会誌 (ISSN:13423215)

巻号頁・発行日

vol.16, no.4, pp.165-170, 2011-11-25 (Released:2017-07-28)

参考文献数

21

被引用文献数

2

---

The aims of the present study, were a) to investigate physiological responses in man who ingested branched-chain amino acid (BCAA) drink for 8 consecutive days during and after incremental exercise and b) to examine the effects of BCAA drink intake on aerobic performance during the exercise. Five healthy males ingested 2000mg・day^<-1> of BCAA drink for 7 consecutive days and 10000-mg BCAA before the experiment and performed incremental cycle ergometer exercise until exhaustion. Exercise duration until exhaustion significantly extended and blood lactate concentration at a 100-W load significantly decreased compared to before ingesting BCAA (p<0.05, respectively). These results suggest that BCAA drink intake could result in improving aerobic performance.

著者

中井 聖 佐川 和則 豊岡 示朗 伊藤 章

出版者

近畿大学教養・外国語教育センター

雑誌

近畿大学教養・外国語教育センター紀要. 一般教養編 = Kinki university center for liberal arts and foreign language education journal. Liberal arts edition (ISSN:21857032)

巻号頁・発行日

vol.1, no.1, pp.3-13, 2011-03-01

---

【Abstract】 The aims of the present study were to investigate characteristics of variations in substrate metabolism with time during prolonged exercise in trained women and to examine the optimal exercise intensity and duration of endurance training in women as exercise prescription. Expired gas was measured in ten trained women who performed 120-min treadmill walking and running at several exercise intensities. Substrate oxidation was computed by substituting determined oxygen uptake and carbon-dioxide output into stoichiometric equations. A constant level of energy expenditure was needed during prolonged exercise at the same intensity, but the enhancement of lipid metabolism with exercise duration led to an increase in fat-derived energy provision and a decrease in the dependency ratio of carbohydrate-derived energy to required energy. Lipid metabolism during low-intensity exercise wasconstantly-enhanced with duration whereas that during moderate- and high-intensity exercise was slowly increased beyond 60 min after initiating exercise and the proportion of fat-derived energy to required energy decreased with increasing exercise intensity. These findings suggest that women inendurance training should continue low-intensity exercise for as long time as possible and that they should select the moderate-intensity to sustain exercise beyond 60 min in order to increase the total volume of energy expenditure.

著者

山本 浩二 中井 聖 ヤマモト コウジ ナカイ アキラ Kouji Yamamoto Akira Nakai

雑誌

近畿医療福祉大学紀要 = Journal of the Kinki Health Welfare University

巻号頁・発行日

vol.13, no.2, pp.49-56, 2012-12-01