血尿素在划船训练医务监督中应用的实验研究

本文研究的结果表明：血尿素与运动量和运动员的机能状况密切相关，训练后血尿素的变化能敏感地反映机体对训练负荷的适应能力和训练后的恢复状况，在训练实践中，血尿素可作为对运动员进行医务监督的一个可靠指标。     

男子400m专项运动员血乳酸与血液动力学关系的研究

实验研究极限强度400米跑后,血乳酸的峰值状态和孔酸半时反应状态血液动力学的特征,建立血乳酸与血液动力学关系,为运动训练建立简易的负荷强度评定标准。     

湖南瓦乡人红细胞血型研究

调查了湖南怀化市沅陵县230名父母均系瓦乡人而彼此无血缘关系学生的ABO、Rhesus、P、MNSs四种红细胞血型系统的血型.结果表明,ABO系统中的基因频率r(0.6325)>p(0.2221)>q(0.1464);MNSs系统中的基因频率m(0.5196)>n(0.4804)、s(0.9848)>S(0.0152)、Ms(0.4902)>Ns(0.4576)>MS(0.0272)>NS(0.0228);Rhesus系统中CCDee表型最常见(57.83%),CDe单倍型频率较高(0.7588),而cDe频率(0.0207)较低;P系统中P1基因频率为0.1391.湖南瓦乡人的红细胞血型分布具有我国南方民族的特点.与云贵高原周边其他8个民族之间的遗传距离比较表明,湖南瓦乡人与湖南土家族的遗传距离最近而和贵州的仡佬族最远.     

抑肽酶减少食管癌根治术围术期失血的临床研究

目的:研究抑肽酶在食管癌根治术中的止血作用,并观察其对血小板功能的影响。方法:将41例需行食管癌根治术的病人随机分为两组,实验组(20例)用抑肽酶,对照组(21例)用安慰剂,记录围术期的失血量,分术前、手术结束时、术后24h、术后48h四个时段检测血小板功能。结果:实验组的围术期失血量明显低于对照组(514.95±87.23ml比621.55±143.99ml,P=0.011)。实验组血小板功能的损害在手术结束时和术后24h要比对照组小得多(P<0.05)。结论:抑肽酶可减少食管癌根治术围术期的失血量,并对血小板功能有保护作用。     

Effect of n-3 fatty acid supplementation on blood glucose, lipid profile and cytokines in humans: A pilot study

This study was undertaken to evaluate the effects of n-3 fatty acid supplementation on blood glucose, lipid profile and cytokines in humans. Twenty adult healthy subjects were supplemented with 1g/day fish oil concentrate capsules for 2 weeks. Fasting blood samples were taken at baseline and again after 2 week intervention. Fish oil supplementation significantly lowered fasting serum concentrations of total cholesterol, triacylglycerol, very low density lipoprotein and low density lipoprotein (P < 0.01). Also high density lipoprotein increased significantly compared with baseline value (P < 0.01). Fish oil did not significantly altere the fasting blood glucose concentration but significantly reduced the serum cytokines (P < 0.001). This study demonstrated that eicosapentanoic acid (EPA) and docosahexaenoic acid (DHA) supplementation altered serum lipids, lipoprotein and cytokine concentrations in normal human subjects even at the small dose of 660 mg of EPA plus DHA per day. It appears that EPA plus DHA can be a safe and perhaps beneficial supplement to inflammatory diseases.     

男子400m运动员间歇训练的实验研究

通过严格实施 30 0m× 4次 (次间间歇递减 )× 3组 (组间间歇递增 )的间歇跑训练 ,分析了运动员实验前后运动成绩、心率恢复指数、血乳酸的变化 ,结果表明 :次间间歇递减和组间间歇递增能深度刺激机体抗乳酸能力 ,对 4 0 0m运动员速度耐力有较大影响。旨在为提高我国男子 4 0 0m训练水平提供参考。     

运动与红细胞免疫研究进展

红细胞通过CR1粘附循环中的IC等功能参与机体免疫。运动过程中RBC-C3bRR和RBC-ICR均发生变化。RFER和RFIR、血乳酸、β—内啡肤的变化是可能的影响因素。对存在的问题和前景也作了一定论述。     

先秦时期的基层组织——乡

"乡"最早出现于甲骨文和陶文中,反映了具有浓厚血缘特征的亲族关系。随着阶级社会的发展和基层组织体系的完善,"乡"逐渐演变为一级重要的基层行政组织,并突破了国野制度的限制和血缘关系的束缚。至春秋战国之际,乡制在各诸侯国中得以普遍的确立。"乡"的发展演变是研究和探讨先秦时期基层组织管理体系发展、变化的一个重要剖面。     

竞技武术中刀、棍项目运动员血型与运动成绩初探

目的：是为提高运动成绩,探讨刀、棍项目运动员血型与运动成绩之间的关系。方法：采用分析调查法,分别对110名运动员进行问卷调查,回收102份。结果：武术刀、棍项目中以O型血占多数,为41.2%,体操以B型血居多,为32%,跨栏跑以A型血居多,为38.5%,AB型血在人群中人数比例少,没有统计学意义。结论：血型可作为竞技武术运动员的辅助条件之一。     

Tai Ji Quan as antihypertensive lifestyle therapy: A systematic review and meta-analysis

BackgroundProfessional health organizations are not currently recommending Tai Ji Quan alongside aerobic exercise to treat hypertension. We aimed to examine the efficacy of Tai Ji Quan as antihypertensive lifestyle therapy.MethodsTai Ji Quan interventions published in English and Chinese were included when they involved healthy adults, reported pre- and post-intervention blood pressure (BP), and had a non-exercise/non-diet control group. We systematically searched 11 electronic databases for studies published through July 31, 2018, yielding 31 qualifying controlled trials. We (1) evaluated the risk of bias and methodological study quality, (2) performed meta-regression analyses following random-effects assumptions, and (3) generated additive models representing the largest possible clinically relevant BP reductions.ResultsParticipants (n = 3223) were middle-aged (56.6 ± 15.1 years of age, mean ± SD) adults with prehypertension (systolic BP (SBP) = 136.9 ± 15.2 mmHg, diastolic BP (DBP) = 83.4 ± 8.7 mmHg). Tai Ji Quan was practiced 4.0 ± 1.4 sessions/week for 54.0 ± 10.6 min/session for 22.3 ± 20.2 weeks. Overall, Tai Ji Quan elicited significant reductions in SBP (–11.3 mmHg, 95%CI: –14.6 to –8.0; d₊ = –0.75) and DBP (–4.8 mmHg, 95%CI: –6.4 to –3.1; d₊ = –0.53) vs. control (p < 0.001). Controlling for publication bias among samples with hypertension, Tai Ji Quan trials published in English elicited SBP reductions of 10.4 mmHg and DBP reductions of 4.0 mmHg, which was half the magnitude of trials published in Chinese (SBP reductions of 18.6 mmHg and DBP reductions of 8.8 mmHg).ConclusionOur results indicate that Tai Ji Quan is a viable antihypertensive lifestyle therapy that produces clinically meaningful BP reductions (i.e., 10.4 mmHg and 4.0 mmHg of SBP and DBP reductions, respectively) among individuals with hypertension. Such magnitude of BP reductions can lower the incidence of cardiovascular disease by up to 40%.