文化大學機構典藏 CCUR:Item 987654321/22956
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    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/22956


    题名: Effect of caffeine ingestion after creatine supplementation on intermittent high-intensity sprint performance
    作者: Lee, Chia-Lun
    Lin, Jung-Charng
    Cheng, Ching-Feng
    贡献者: 運動教練研究所
    关键词: HUMANS
    SKELETAL-MUSCLE
    EXERCISE PERFORMANCE
    PHOSPHOCREATINE RESYNTHESIS
    BLOOD LACTATE
    METABOLISM
    RESPONSES
    ENDURANCE
    CATECHOLAMINE
    POWER
    日期: 2011-08
    上传时间: 2012-09-07 16:17:17 (UTC+8)
    摘要: The aim of this study was to investigate the effects of acute caffeine ingestion on intermittent high-intensity sprint performance after 5 days of creatine loading. After completing a control trial (no ergogenic aids, CON), twelve physically active men were administered in a double-blind, randomized crossover protocol to receive CRE + PLA (0.3 g kg(-1) day(-1) of creatine for 5 days then followed by 6 mg kg(-1) of placebo) and CRE + CAF (0.3 g kg(-1) day(-1) of creatine for 5 days and followed by 6 mg kg(-1) of caffeine), after which they performed a repeated sprint test. Each test consisted of six 10-s intermittent high-intensity sprints on a cycling ergometer, with 60-s rest intervals between sprints. Mean power, peak power, rating of perceived exertion (RPE), and heart rates were measured during the test. Blood samples for lactate, glucose, and catecholamine concentrations were drawn at specified intervals. The mean and peak power observed in the CRE + CAF were significantly higher than those found in the CON during Sprints 1 and 3; and the CRE + CAF showed significantly higher mean and peak power than that in the CRE + PLA during Sprints 1 and 2. The mean and peak power during Sprint 3 in the CRE + PLA was significantly greater than that in the CON. Heart rates, plasma lactate, and glucose increased significantly with CRE + CAF during most sprints. No significant differences were observed in the RPE among the three trials. The present study determined that caffeine ingestion after creatine supplements augmented intermittent high-intensity sprint performance.
    關聯: EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY Volume: 111 Issue: 8 Pages: 1669-1677
    显示于类别:[運動教練研究所] 期刊論文

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