@article{oai:kokushikan.repo.nii.ac.jp:00010432,
 author = {笹川, 友幸 and SASAGAWA, Tomoyuki and 海保, 享代 and KAIHO, Takayo and 松本, 高明 and Matsumoto, Takaaki and 内藤, 祐子 and Naito, Yuko},
 journal = {体育・スポーツ科学研究, Kokushikan society of sport science},
 month = {Mar},
 note = {Caffeine administration has been shown to increase fat metabolism and endurance ability. However, the effects of caffeine on metabolism during endurance exercise with reduced muscle glycogen are not clear.
　Therefore, this single-blind crossover study aimed to investigate the effects of a slight prior depletion in internal glycogen on metabolic response during the following endurance exercise in 4 healthy males after ingestion of a low-concentration of caffeine. After 30min of cycling ergometer exercise at 50%VO_2VT, subjects ingested caffeine（3mg/body weight kg）or placebo（glucose 3mg/body weight kg）， and sat on a chair for 60min. Participants performed 30min of the continuous exercise at the same intensity again after the rest. During the first and second exercise, HR, gas analysis, and Borg’s scale were measured and fatty acid oxidation and sugar oxidation were calculated. During the second exercise with internal glycogen depletion, HR was significantly lower in the caffeine trial than in the placebo trial（caffeine：placebo=107±6：112±7, p<0.05）， and the respiratory exchange ratio was also significantly lower with caffeine than with placebo（caffeine：placebo=0.861±0.038：0.871±0.025, p<0.05）．Fatty acid oxidation was slightly higher with caffeine than with placebo（caffeine：placebo=0.343±0.083g/min：0.325±0.058g/min p=0.0540）．The results suggested that caffeine ingestion during continuous exercise with slight muscle glycogen deletion enhanced fat oxidation., application/pdf},
 pages = {55--61},
 title = {軽運動後のカフェイン摂取による持久力の回復について},
 volume = {15},
 year = {2015},
 yomi = {ササガワ, トモユキ and カイホ, タカヨ and マツモト, タカアキ and ナイトウ, ユウコ}
}