文化大學機構典藏 CCUR:Item 987654321/48796
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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/987654321/48796


    题名: Acute responses of bone specific and related markers to maximal eccentric exercise of the knee extensors and flexors in young men
    作者: Huang, TH (Huang, Tsang-Hai)
    Lin, JC (Lin, Jung-Charng)
    Ma, MC (Ma, Mi-Chia)
    Yu, T (Yu, Tsung)
    Chen, TC (Chen, Trevor C.)
    贡献者: 體育學系
    关键词: Bone Metabolism
    Delayed Onset Muscle Soreness
    Lengthening Contractions
    Muscle Damage
    Plasma Creatine Kinase Activity
    日期: 2020-06
    上传时间: 2020-11-06 14:24:41 (UTC+8)
    摘要: Objectives: The present study determined time-course changes in plasma bone-specific and -related markers following a bout of maximal eccentric contractions (MaxEC) of bilateral knee extensors (KE) and flexors (KF). Methods: Sedentary young men (n=30) performed a bout of 10 sets of 10 MaxEC (30 degrees/s) of KE and KF with each leg, respectively. Maximal voluntary isometric contraction (MVC) torque, muscle soreness (SOR), plasma creatine kinase (CK) activity, insulin, leptin, tumor necrosis factor-alpha (TNF-alpha), undercarboxylated-osteocalcin (ucOCN), carboxy-terminal crosslinking telopeptide of type I collagen (CTX-1) and procollagen type I N-terminal propeptide (P1NP) concentrations were measured from before to 7 days after MaxEC. Results: Significant changes in MVC (KE: -28%, KF: -38%), SOR and plasma CK activity (peak: 39,163 IU/L) following MaxEC were evident (P<0.05) compared to baseline. Plasma leptin (17%) concentrations decreased at 1 day after MaxEC. In bone related markers, plasma ucOCN concentrations (20%) increased at 7 days after MaxEC, and plasma CTX-1 concentrations decreased at 2, 4 and 7 days after MaxEC (6 similar to 7%; P<0.05). Conclusion: These results demonstrate that a lean effect of bone generation and an enhanced energy anabolism can be induced by a single bout of MaxEC.
    關聯: JOURNAL OF MUSCULOSKELETAL & NEURONAL INTERACTIONS 卷冊: 20 期: 2 頁數: 206-215
    显示于类别:[體育學系] 期刊論文

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