The effect of two different 18-week walking programmes on aerobic fitness, selected blood lipids and factor XIIa     

Woolf-May K  Kearney EM  Jones DW  Davison RC  Coleman D  Bird SR 《Journal of sports sciences》1998,16(8):701-710

Forty-nine previously sedentary or low active individuals aged 40-71 years were allocated to three groups. The long walking group participated in an 18-week walking programme which consisted of walks lasting 20-40 min; the repetitive short walking group completed walks of between 10 and 15 min, up to three times a day, with no less than 120 min between each walk; and the control group maintained their low level of activity. Both walking programmes began at a prescribed 60 min x week(-1), which increased steadily up to 200 min x week(-1) by week 12. During the study, the long walking group walked for an estimated 2514 min (139 min x week(-1)), expending an estimated 67.5 MJ (3.72 MJ x week(-1)) at an estimated 73% of their age-predicted maximum heart rate and 68% of their estimated VO2max. The repetitive short walking group walked for an estimated 2476 min (135 min x week(-1)), expending an estimated 58.5 MJ (3.17 MJ x week(-1)) at an estimated 71% of their age-predicted maximum heart rate and 65% of their estimated VO2max. The results showed a statistically significant reduction in heart rate during a standardized step test (pre- vs post-intervention) in both walking groups, indicating an improvement in aerobic fitness, although the control group showed a higher average heart rate during the post-intervention test, indicating reduced fitness. When compared with the male subjects pre-intervention, the females possessed more favourable levels of high-density lipoprotein (HDL) cholesterol (P< 0.001), apolipoprotein (apo) AI (P < 0.001) and ratios of total cholesterol:HDL cholesterol (P< 0.02) and low-density lipoprotein (LDL) cholesterol: HDL cholesterol (P< 0.02). Compared with the controls post-intervention, the walking groups showed no statistically significant changes in total cholesterol, LDL cholesterol, HDL cholesterol, apo AI, apo AII, apo B, or the ratios of total cholesterol: HDL cholesterol, LDL cholesterol: HDL cholesterol, apo AI: apo B or apo AI: apo AII (P > 0.05). Relative to the walking groups, factor XIIa increased in the control group (P < 0.05). We conclude that, although both walking programmes appeared to improve aerobic fitness, there was no evidence of improvements in the blood lipids or associated apolipoproteins of the walking groups. Further analysis indicated that this apparent lack of change may have been related to the subjects' relatively good pre-intervention blood lipid profiles, which restricted the potential for change. The implications of the observed changes in the coagulation/fibrinolytic factors remain unclear.  相似文献   

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畅红霞  项菲 《图书情报工作》1998,42(8):9-11

阐述我国信息服务业在未来发展中的若干走向,指出图书馆在信息服务业竞争中面临的危机及其具备的优势,并提出了几项着眼于未来的发展策略  相似文献   

由在图书馆阅览室开会所想到的……     

翔武 《大学图书馆学报》1998,16(5):78

高校图书馆是服务于学校教学科研的重要学术机构,在我国高等教育的发展中发挥着重要作用。但是在某些高校图书馆,却发生着种种不正常的现象,严重干扰着图书馆职能的发挥。这里我们编发一封读者来信,信中反映的情况虽不普遍,却典型地反映了某些领导对待图书馆工作的不正确的心态,值得我们的图书馆主管部门反思  相似文献   

Fifty years of patients' libraries     

MARGARET E. S. FORREST 《Health information and libraries journal》1998,15(4):267-278

浅议提高高校图书馆文献利用率     

项成 《图书馆学研究》1998,(4):82-83

本文从改进采购工作等四个方面,谈了如何提高高校馆文献利用率的问题.  相似文献   

武术运动员血液尿素氮浓度的变化   总被引：6，自引：1，他引：5  

项汉平  丁宝玉  梅汉超  梅焰 《湖北体育科技》1998,(3)

武术运动是个传统的体育项目,在运动训练中的形式和方法与其它的体育项目有所不同。已知氨是机体会成尿素的原料,当肌肉在进行大量地运动时,通过丙氨酸的形式释放氨,氨的释放量即血液尿素氮的浓度与运动训练对人体的刺激程度成正比。对武术运动在不同的运动形式或内容下与血液尿素氮的浓度关系,我们在对优秀武术运动员的测试结果中得到：运动密度或运动强度越大,次晨的血液尿素氮浓度越高,与他人的研究结果一致。  相似文献   

高校青年体育教师流动问题的社会学研究   总被引：1，自引：0，他引：1  

项立敏 《山东体育学院学报》1998,(2)

综合运用文献资料、调查访问、逻辑分析等研究方法,对高校青年体育教师的流失问题进行社会学分析。结果表明：青年教师的流动在高校中普遍存在,流失的虽是少部分,但隐形流失是存在的不可忽视的问题。流动的对象、方向不合理,后果严重。思想不稳定及缺乏敬业精神等是流失的主观原因,工资待遇低、不被重视、环境艰苦等是流失的客观原因,并对青年体育教师的稳定提出建议与对策。  相似文献   

论使用兴奋剂已经成为政治问题     

韩丹 《哈尔滨体育学院学报》1998,(2)

兴奋剂的使用,严重地破坏着奥林匹克理想和奥运公平竞赛原则,成为奥运发展的大敌之一,国际奥委会正与之进行着坚决的斗争。兴奋剂的使用在我国也是一股潜在的暗流,我们也与之进行着卓有成效的坚决斗争。但,由于种种原因,仍然屡戒不止,屡禁不绝,甚至发展到近乎猖狂的程度(当然只是某些项目),已经成为一个有损我国形象的政治问题,必须认真提高政治认识,痛下决心,予以从严根治。  相似文献   

Introduction     

Ralph E. Kirkman 《Peabody Journal of Education》2013,88(2)

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Boy with a Book     

Douglas E. Lawson 《The Educational forum》2013,77(3)

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