楷书笔画组合关系与传统文化

楷书笔画的组合大致可以归纳为平行、对称、垂直三种基本关系,这体现了楷书造型崇方正、尚平稳、和而不同的基本美学特点。楷书笔画组合关系与传统文化思想有着紧密的内在联系,是儒学“中和”之美和道家阴阳圆融思想共同渗透和影响的结果,是汉字作为中国民族文化思想载体的必然选择。     

振动训练结合运动提高脑卒中轻瘫患者上肢肌力的研究

目的观察振动训练对脑卒中偏瘫患者上肢肌力的影响。方法采用常规治疗和护理的40例急性脑卒中偏瘫患者随机分为四组,A组进行振动训练和抗阻练习;B组和C组分别单纯进行振动训练和抗阻练习;D组仅采用常规治疗和护理基础。每组10人。各组干预周期均为3个月,研究前后进行腕、肘屈伸肌力和肩外展肌力测试。结果四组患者上肢肌力均提高。其中,A组肌力提高最明显;B组和C组增加幅度相当;D组虽有提高,但与实验前没有显著性差异。结论早期振动训练结合运动能有效提高急性脑卒中偏瘫患者上肢肌力,改善肢体运动功能。     

吴让之小篆与篆刻艺术浅析

晚清著名书法篆刻家吴让之为邓石如艺术流派的发扬光大者,深得邓氏以隶书的笔法作篆书的奥诀,字法精熟,结体工稳,运笔爽畅,收笔处往往刷出,动势较强。他践行了邓石如"印从书出"的思想,其治印集合其篆书特点,以石带纸,以刀带笔,达到了刀笔相融,使书印合一的表现有了崭新的境界,让书的意味在印章的方寸之间有了更大的容量。     

毛泽东书法艺术赏析

本文从纵向的历史角度，简要分析毛泽东书法艺术的继承与创新，阐明其独特风格的形成和笔法运用、间架结构、分行布白的特点，揭示其独特的艺术魅力。     

大鼠实验性胃溃疡期间大脑皮层SS免疫组织化学和原位杂交组织化学研究

目的 观察大鼠实验性胃溃疡期间大脑皮层生长抑素免疫反应(SS-ir)和SSmRNA神经元的变化。方法 免疫细化PAP法;地高辛标记反意SScRNA探针mRNA原位杂交组化法。结果 正常大鼠SS-ir神经元广泛分布于大脑皮层。溃疡术后1d,大脑皮层纹状皮质区各层SS-ir神经元减少,但可见大量串珠样SS强阳性纤维,溃疡组SS-ir神经元数与盐水组相比无差异;术后4d,溃疡组大脑皮层纹状皮质区各层SS-ir神经元密集、数量明显增多,与盐水组、正常组相比均有差异(P<0.05,P<0.01或P<0.001)。术后10和23d,以上核区SS-ir神经元数仍高于盐水组和正常组(P<0.01,P<0.001)。术后4d,溃疡组大脑皮层SSmRNA神经元数量明显多于盐水组(P<0.001)。结论 大鼠实验性胃溃疡时期,大脑皮层SS-ir和SSmRNA神经元可能参与了胃溃疡自愈过程的调节。     

国内外优秀女子皮艇运动员单人艇划桨节奏的比较研究

为了改进和完善国家队队员的技术,分析了备战北京奥运会的国家队女皮队员单人艇一桨周期的划桨节奏,并和国外优秀女选手的相应指标进行比较。采用录像分析法对一桨周期动作的时相进行分析,水中拉桨时间比例和空中回桨时间比例国家队平均为67％比33％;国外优秀队员为68％比32％。其中曾获得雅典奥运会前3名的国外队员的数据平均为70％比30％。国外优秀队员水中拉桨比例的增大体现在后拉桨阶段比例的增大。因此,国家队队员拉桨中要注意后拉桨阶段的转体幅度,延长拉桨距离。     

Changes in swimming technique during time to exhaustion at freely chosen and controlled stroke rates

Abstract

The aim of this study was to assess technical changes during constrained swimming in time-to-exhaustion tests. Ten swimmers of national standard performed a maximal 400-m front crawl and two sets of exhaustion tests at 95%, 100%, and 110% of mean 400-m speed. In the first set (free), swimmers had to maintain their speeds until exhaustion and mean stroke rate was recorded for each test. In the second set (controlled), the same speed and individual corresponding stroke rate were imposed. The durations of the exhaustion tests, relative durations of the stroke phases, and arm coordination were analysed. For each speed in the “controlled” set, the exhaustion tests were shorter. Moreover, variables were consistent, suggesting a stabilization of stroke technique. Under the free condition, stroke rate increased to compensate for the decrease in stroke length. At the same time, swimmers reduced the relative duration of their non-propulsive phases in favour of the propulsive phases. Thus, swimmers changed their arm coordination, which came close to an opposition mode. These two constraints enable swimmers both to maintain their stroking characteristics and develop compensatory mechanisms to maintain speed. Moreover, stroke rate can be seen as a useful tool for controlling arm technique during paced exercise.     

高校游泳教学蛙泳腿常见错误动作分析

通过对湖州师范学院04级社会体育系45名学生蛙泳考试时的动作进行观察与统计得出,蛙泳腿部动作的常见错误,并从运动生物力学和流体力学角度进行分析,查找出学生蛙泳蹬腿动作的错误原因。