运动性延迟性肌肉酸痛与线粒体的热机效率原理的探讨   总被引：4，自引：0，他引：4  

胡柏平  王勇  刘艳秋 《北京体育大学学报》2006,29(4):506-508

运动性延迟性肌肉酸痛是一个涉及到全身多个系统,多个层次的综合作用.作为一类特殊类型肌肉疲劳,目前DOMS的研究主要是围绕其产生原因与机理,对机体的影响以及如何有效消除不利因素等方面进行的.本文提出线粒体的热机效率原理可作为DOMS的一种可能性机制的观点,旨在为DOMS的研究深入到分子机制水平指明方向.  相似文献   

Efficacy of massage on muscle soreness,perceived recovery,physiological restoration and physical performance in male bodybuilders     

Mehdi Kargarfard  Eddie T.C. Lam  Ardalan Shariat  Ina Shaw  Brandon S. Shaw  Shamsul B.M. Tamrin 《Journal of sports sciences》2016,34(10):959-965

It is believed that sport massage after intensive exercise might improve power and perceptual recovery in athletes. However, few studies have been done in this area. This study aimed to examine the effect of massage on the performance of bodybuilders. Thirty experienced male bodybuilders were randomly assigned to either a massage group (n = 15) or a control group (n = 15). Both groups performed five repetition sets at 75–77% of 1RM of knee extensor and flexor muscle groups. The massage group then received a 30-min massage after the exercise protocol while the control group maintained their normal passive recovery. Criteria under investigation included: plasma creatine kinase (CK) level, agility test, vertical jump test, isometric torque test, and perception of soreness. All variables were measured over 6 time periods: baseline, immediately after the DOMS inducing protocol, right after the massage, and 24, 48, and 72 h after the massage. Both groups showed significant (P < .001) decreases in jumping, agility performance, and isometric torque, but significant (P < .001) increases in CK and muscle soreness levels. The massage group in general demonstrated a better recovery rate. As such, a post-exercise massage session can improve the exercise performance and recovery rate in male bodybuilders after intensive exercise.  相似文献   

延迟焦化过程抑制镍钒脱氢反应的初步研究     

吴世逵  江禄森 《茂名学院学报》2015,(1)

延迟焦化在原油深度加工中地位日益突出,其工艺技术进展的主要目标是最大限度地提高液体油收率。文章针对镍钒存在形态、脱氢反应的影响、抑制脱氢反应展开讨论,并提出钝化镍钒作用的对策,从理论研究找出切实可行的方法来指导生产实践。  相似文献   

植物提取物补充对延迟性肌肉酸痛干预效果     

苏浩  袁梦  李翘楚 《体育科学研究》2022,(1)

通过查阅相关文献,以“延迟性肌肉酸痛”“植物提取物”“DOMS”和“plant extracts”等中英文检索词,分别在中国知网、万方数据库、Webofscience数据库、PubMed数据库和EBSCO系列数据库中,对自1983年6月至2020年5月的相关文献进行检索,最终选取81篇文献进行综述,以探讨植物提取物补充对延迟性肌肉酸痛干预效果,并阐述相关研究进展。结果表明:植物提取物干预与物理、药物和单一营养素干预相比,能从DOMS的炎症反应和氧化应激过程入手来预防延迟性肌肉酸痛的相关症状。但在当前研究中,有关植物提取物的补充效果仍缺乏一些大样本和大规模的实验证明,未来人们的研究方向应着眼于探究更多种类的植物提取物对延迟性肌肉酸痛的干预效果,以及确定在实际应用中具体的最优补剂方案。  相似文献   

时滞类Lorenz系统的Hopf分支     

李德奎  连玉平 《温州大学学报(社会科学版)》2014,(2):1-7

对类Lorenz系统的状态变量加上时滞得到一个泛函微分动力系统--时滞类Lorenz系统。首先给出了该系统仅存在零平衡点的条件,然后根据系统在零平衡点处的线性化系统对应的特征方程根的分布情况,给出了系统在零平衡点处稳定性和发生Hopf分支的条件,最后通过一些数值模拟验证了所得结论的正确性。  相似文献   

濒危植物夏蜡梅的繁育系统和传粉特性研究     

陈真真  顾振燕  干永岳  边才苗 《台州学院学报》2014,(3):16-20

夏蜡梅（Sinocaycanthus chinensis）为雌蕊先熟,其花部构造适合于异交：但花药开裂在花后第3天．提示该植物也可延迟自交。研究了天台大雷山夏蜡梅种群的繁育系统与传粉特性,结果如下：1）开花当天柱头就能接受花粉,但最高活性在花后第2天,在花药开裂时,柱头活性有所下降,但与最高值差异不显著。2）不去雄套袋的结实率显著高于去雄不套袋,自然条件下以自交为主,自交率为61．3％和73．6％。3）延迟自交的繁殖保障效应分别只有78．1％和84．8％,主要原因是结实的花粉限制和结实阶段轻度的近交衰退。  相似文献   

Phonological awareness and morphological awareness: differential associations to regular and irregular word recognition in early Korean Hangul readers     

Jeung-Ryeul Cho  Catherine McBride-Chang  Soon-Gil Park 《Reading and writing》2008,21(3):255-274

A large battery of reading related skills were orally administered to 111 4-year old and 118 5-year old Korean kindergartners, who were also tested on reading of regular and irregular Korean Hangul words. In regression equations, speeded naming was uniquely associated with reading of both regular and irregular words. In contrast, only the three measures of phonological awareness at the levels of phoneme onset, coda, and syllable uniquely explained Hangul regular word recognition, whereas only morphological awareness consistently explained irregular word recognition. Results suggest somewhat different cognitive demands for reading of regular and irregular words, based on the dual-route model, in Korean Hangul.  相似文献   

Survival responses to incest: Adolescents in crisis     

Frederick H. Lindberg Ph.D.  Lois J. Distad M.A. 《Child abuse & neglect》1985,9(4):521-526

Twenty-seven incest victims, aged 12-18, responded to their experiences with self-destructive behaviors such as substance abuse, suicide attempts, perfectionism, isolation, or depression in attempts to alleviate stress or assert some control over helplessness created by the incest. Therapy focused on the premise that such adolescent behaviors are logical and predictable survival responses rather than simply clues to sexual abuse. Treatment goals included establishing trust, helping the victim re-define his or her role in the incest, view destructive behaviors as predictable responses, and understand that present behaviors are a continuation of these past survival responses. Such self-awareness encourages the adolescent to better manage or discontinue now inappropriate behaviors.  相似文献   

运动性延迟性肌肉酸痛研究进展(十年)     

洪长青  陶江 《湖北体育科技》1999,(3)

运动性延迟性肌肉酸痛是特指人体在大强度或不习惯性运动后一段时间内出现的肌肉酸痛,表现为酸痛的延迟性及发展过程的相对独立性,其机制主要有机械损伤、炎症反应等假说。  相似文献   

英语音节成分构成原则的分析和比较     

黄小萍 《华侨大学学报(哲学社会科学版)》2009,(2):118-125

比较英语音节首音和尾音构成的分析模式。SSP简明实用,符合英语的语音配列倾向,其限制性比GP的多元素性程度条件、CVCV模式和“合音”分析模式强。GP准许原则的框架下,英语的音节结构为CCVX,sC和sCC中s与后面辅音不属于同一音节的分析解决了英语语音配列允许的sC、sCC组合和词尾辅音丛违背SSP的问题。语言倾向采用两辅音之间响度距离更大的首音丛、OCP、MSD等原则和发音、构词方面的因素能解释符合SSP的辅音丛为何未成为英语的语音配列允许的组合。  相似文献