雌激素的生物学作用及其对运动训练的意义   总被引：4，自引：0，他引：4  

邓士琳  刘建华 《体育科学》2004,24(4):31-33

对近10年来国内外相关的研究结果进行研究与总结，结果发现：1)雌激素对心血管结构和功能有良好的影响。对心肌糖元、肌肉中磷酸肌酸等的恢复有影响．对蛋白质代谢也有直接或间接影响，从而使运动能力受影响；2)雌激素具有抗氧化和保护细胞膜稳定性的作用，对耐力项目运动能力及减少运动损伤的发生有重要意义；3)雌激素不仅对中枢神经系统具有直接作用。还可通过神经内分泌免疫调节网络的平衡，对中枢认知功能产生间接作用。主要结论：雌激素的作用是多途径和多环节的，利用雌激素分泌状态对提高女运动员运动能力，预防运动损伤无疑具有良好的意义。  相似文献   

谈图书馆的传染病预防工作   总被引：1，自引：0，他引：1  

徐洪升 《大学图书情报学刊》2006,24(5):40-42

目前,传染病出现了新的发展趋势.图书馆是人员流动较大的公共场所,并非传染病传播范围之外的"净土",而我国大部分图书馆的卫生现状不容乐观.因此,图书馆应搞好传染性疾病的综合防治工作,创造健康、舒适的学习、工作环境.  相似文献   

老年肺心病单纯呼吸衰竭与并发多脏器功能衰竭电解质紊乱探讨     

李凯伟  袁玉如 《玉溪师范学院学报》2003,19(Z1):91-93

为了解老年肺心病单纯呼吸衰竭与并发多脏器功能衰竭电解质紊乱的异同及临床意义.对122例老年肺心病呼吸衰竭患者分别进行了分组研究,发现老年肺心病单纯呼吸衰竭与并发多脏器功能衰竭发生率、电解质紊乱率高,并肾衰的电解质紊乱重.并发脏器衰竭越多,电解质紊乱越重,死亡率越高.老年肺心病并发多脏器功能衰竭,若电解质四项均降低,k+增高,预后不良.  相似文献   

降钙素基因相关肽在心血管系统及运动中的相关研究进展     

周琥  张晓红  关宇光 《北京体育大学学报》2006,29(2):218-220

降钙素基因相关肽是调节心血管活动的重要神经递质之一,是迄今所知的人体最强的舒血管物质.通过对降钙素基因相关肽在心血管系统及运动中前沿研究的综述,以期为它在运动生理学方面的应用研究提供参考线索.  相似文献   

篮球健身操锻炼的身体效应和健身效果分析   总被引：10，自引：4，他引：6  

孙世明  王玉谨  宋文锋 《广州体育学院学报》2000,20(3):73-76

通过结合篮球运动的基本动作,从基本的站立姿势到传球、运球、瞄篮、转身、突破等篮球专项技术与基本体操的踢腿、体侧、腹背等动作创编成篮球健身操,在不同年龄的人群中进行锻炼,结果表明,本篮球健身操的练习强度在有氧代谢运动范围,长期练习可改善和提高机体的心血管功能和平衡调能力。  相似文献   

High-intensity interval and moderate-intensity continuous training elicit similar enjoyment and adherence levels in overweight and obese adults     

Chantal A. Vella  Katrina Taylor  Devin Drummer 《European Journal of Sport Science》2017,17(9):1203-1211

Background: High-intensity interval training (HIIT) has been shown to improve cardiometabolic health during supervised lab-based studies but adherence, enjoyment, and health benefits of HIIT performed independently are yet to be understood. We compared adherence, enjoyment, and cardiometabolic outcomes after 8 weeks of HIIT or moderate-intensity continuous training (MICT), matched for energy expenditure, in overweight and obese young adults. Methods: 17 adults were randomized to HIIT or MICT. After completing 12 sessions of supervised training over 3 weeks, participants were asked to independently perform HIIT or MICT for 30 min, 4 times/week for 5 weeks. Cardiometabolic outcomes included cardiorespiratory fitness (VO₂ peak), lipids, and inflammatory markers. Exercise enjoyment was measured by the validated Physical Activity Enjoyment Scale. Results: Exercise adherence (93.4?±?3.1% vs. 93.1?±?3.7%, respectively) and mean enjoyment across the intervention (100.1?±?4.3 vs. 100.3?±?4.4, respectively) were high, with no differences between HIIT and MICT (p?>?.05). Similarly, enjoyment levels did not change over time in either group (p?>?.05). After training, HIIT exhibited a greater decrease in low-density lipoprotein cholesterol than MICT (?0.66?mmol?L^?1 vs. ?0.03?mmol?L^?1, respectively) and a greater increase in VO₂ peak than MICT (p?<?.05, +2.6?mL?kg?min^?1 vs. +0.4?mL?kg?min^?1, respectively). Interleukin-6 and C-reactive protein increased in HIIT (+0.5?pg?mL^?1 and +?31.4?nmol?L^?1, respectively) and decreased in MICT (?0.6?pg?mL^?1 and ?6.7?nmol?L^?1, respectively, p?<?.05). Conclusions: Our novel findings suggest that HIIT is enjoyable and has high unsupervised adherence rates in overweight and obese adults. However, HIIT may be associated with an increase in inflammation with short-term exercise in this population.  相似文献   

The information experience and learning needs of couples living with HIV in Malawi     

Kondwani Wella 《Health information and libraries journal》2014,31(4):325-329

In this feature, guest writer Kondwani Wella presents an overview of his PhD – a study which investigated the information experience of serodiscordant couples with HIV and AIDS in Malawi. In particular, for this article, he considers the information behaviour of people who need HIV‐ and AIDS‐specific information and the role of the librarian in helping to deliver what is needed to support engagement in relevant learning. H.S.  相似文献   

Visceral and somatic hypersensitivity,autonomic cardiovascular dysfunction and low-grade inflammation in a subset of irritable bowel syndrome patients     

Liang Liu  Bei-ni Liu  Shuo Chen  Miao Wang  Yang Liu  Yan-li Zhang  Shu-kun Yao 《Journal of Zhejiang University. Science. B》2014,15(10):907-914

The pathophysiology of irritable bowel syndrome (IBS) is complex and not fully understood, so the aim of this study was to evaluate whether visceral and somatic hypersensitivity, autonomic cardiovascular dysfunction, and low-grade inflammation of the gut wall are associated with diarrhea-predominant IBS (D-IBS). Sixty-two patients with D-IBS and 20 control subjects participated in the study. Using the ascending method of limits (AML) protocol, we demonstrated that D-IBS patients had significantly lower sensory thresholds compared with healthy controls (P<0.001). Using diverse methods, especially the ischemic sensitivity test, for the first time in China, we confirmed that D-IBS patients have somatic hypersensitivity. They had a significantly higher systolic blood pressure and heart rate after a cold stimulus, indicative of autonomic cardiovascular dysfunction. Compared with the control group, D-IBS patients had a significantly higher level of calprotectin (P<0.001). We also found significant correlations between visceral and somatic hypersensitivity, visceral hypersensitivity and autonomic cardiovascular dysfunction, and somatic hypersensitivity and autonomic cardiovascular dysfunction. Our findings may provide valuable suggestions for the treatment of D-IBS.  相似文献   

高压旋喷桩在铁路路基加固中的应用     

孙建超 《石家庄铁路工程职业技术学院学报》2014,(2):40-45

高压旋喷桩加固是地基加固中主要采用的一种方法,实际上属于高压喷射注浆桩又称旋喷法注浆,它是20世纪60年代后期始创于日本。该方法在路基加固实践中得到了广泛的应用。重点阐述高压旋喷桩的加固机理和施工工艺。  相似文献   

Structures of Human P2Y_(12) Receptor Key to Next Generation of Antithrombotic Drugs     

《中国科学院院刊(英文版)》2014,(3):241-242

<正>An international team led by scientists at the Shanghai Institute of Materia Medica(SIMM),CAS has characterized the detailed structure of a receptor that plays a key role in platelet activation and blood clotting.The work has implications for treatment of cardiovascular and other diseases.In a pair of papers published by the journal Nature on May 1st,the scientists provide a detailed map of P2Y12R,a human Gi protein-coupled receptor,in the antagonist and agonist bound states.The antithrombotic drug target has a market of several billion U.S.dollars."This new work will not only deepen the understanding of activation of this receptor super-family,but will also provide invaluable insight into the improvement and development of P2Y12 drugs targeting cardiovascular and other diseases,"said team leader ZHAO Qiang,professor at SIMM."I am particularly proud of the high quality international collaboration among China,USA,and  相似文献