Effect of endurance training supplemented with green tea extract on substrate metabolism during exercise in humans

Takashi Ichinose, S. Nomura, Y. Someya, S. Akimoto, K. Tachiyashiki, K. Imaizumi

研究成果: Article

  • 23 引用

抄録

Endurance training and ingestion of green tea extract (GTE), composed mainly of tea catechins (TC), are well known to enhance fat metabolism. However, their synergistic effects remain to be fully elucidated. We tested the hypothesis that endurance training supplemented with GTE would further accelerate whole-body fat utilization during exercise, compared with training alone, in humans. Twelve healthy male subjects [peak oxygen consumption, 50.7 ± 1.3 (SEM)mL/kg/min] were divided into two groups: GTE and placebo (PLA) groups. Subjects in both groups performed a cycle ergometer exercise at 60% of for 60min/day, 3 days/week, and daily ingested 572.8 or 0mg TC in GTE and PLA groups for 10 weeks, respectively. Before and after training, respiratory gas exchange was measured during 90-min exercise at pre-training ∼55% of After training, the average respiratory exchange ratio during exercise remained unchanged in the PLA group (post-training: 0.834 ± 0.008 vs pre-training: 0.841 ± 0.004), whereas it was lower in the GTE group (post-training: 0.816 ± 0.006 vs pre-training: 0.844 ± 0.005, P<0.05). These results suggest that habitual GTE ingestion, in combination with moderate-intense exercise, was beneficial to increase the proportion of whole-body fat utilization during exercise.

言語English
ページ598-605
Number of pages8
ジャーナルScandinavian Journal of Medicine and Science in Sports
Volume21
4
DOIs
Publication statusPublished - 2011 8

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Tea
Exercise
Catechin
Placebos
Adipose Tissue
Eating
Oxygen Consumption
Healthy Volunteers
Gases
Fats

Keywords

    ASJC Scopus subject areas

    • Orthopedics and Sports Medicine
    • Physical Therapy, Sports Therapy and Rehabilitation

    これを引用

    Effect of endurance training supplemented with green tea extract on substrate metabolism during exercise in humans. / Ichinose, Takashi; Nomura, S.; Someya, Y.; Akimoto, S.; Tachiyashiki, K.; Imaizumi, K.

    :: Scandinavian Journal of Medicine and Science in Sports, 巻 21, 番号 4, 08.2011, p. 598-605.

    研究成果: Article

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    abstract = "Endurance training and ingestion of green tea extract (GTE), composed mainly of tea catechins (TC), are well known to enhance fat metabolism. However, their synergistic effects remain to be fully elucidated. We tested the hypothesis that endurance training supplemented with GTE would further accelerate whole-body fat utilization during exercise, compared with training alone, in humans. Twelve healthy male subjects [peak oxygen consumption, 50.7 ± 1.3 (SEM)mL/kg/min] were divided into two groups: GTE and placebo (PLA) groups. Subjects in both groups performed a cycle ergometer exercise at 60{\%} of for 60min/day, 3 days/week, and daily ingested 572.8 or 0mg TC in GTE and PLA groups for 10 weeks, respectively. Before and after training, respiratory gas exchange was measured during 90-min exercise at pre-training ∼55{\%} of After training, the average respiratory exchange ratio during exercise remained unchanged in the PLA group (post-training: 0.834 ± 0.008 vs pre-training: 0.841 ± 0.004), whereas it was lower in the GTE group (post-training: 0.816 ± 0.006 vs pre-training: 0.844 ± 0.005, P<0.05). These results suggest that habitual GTE ingestion, in combination with moderate-intense exercise, was beneficial to increase the proportion of whole-body fat utilization during exercise.",
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