传统体育对绝经女性骨密度的影响   总被引：25，自引：1，他引：24  

周勇 《北京体育大学学报》2004,27(3):354-355

为了探讨传统体育锻炼对绝经女性骨密度的影响.将60名绝经女性,随机分为非体育锻炼组和跳绳、木兰拳、太极拳套路及太极推手等4个运动组,经10个月的实验.结果表明,非锻炼组骨量丢失,骨密度下降,4个运动组的骨密度均增加,并且太极推手组所测各指标及跳绳组桡、尺骨骨密度增加得更明显;经组间比较,太极推手组优于跳绳组(P<0.05),跳绳组优于木兰拳或太极拳套路组(P<0.05).结论:传统体育跳绳、木兰拳及太极拳运动对绝经女性骨密度的影响是积极的,是绝经女性抵抗骨量丢失,促进骨密度增大的有效运动,并且太极推手对骨量增加更全面,增大骨密度更有效.  相似文献   

台湾普通话中的“有＋动词”研究     

窦焕新 《锦州师范学院学报(哲学社会科学版)》2006,28(3):47-50

台湾地区使用的普通话与现代汉语①不完全相同,比较明显的区别在于“有＋动词”的特殊用法.现代汉语中“有”的宾语一般应为名词,只有少数双音节动词可以做“有”的宾语,而且有诸多限制.可在台湾普通话中,却几乎所有的动词结构都可以用在“有”后面.此时的“有”相当于现代汉语中的“了”是“完成体”的标记.我们将这种句式的结构和表达的语法意义进行分析,并尝试分析这种句式产生的原因,预测其发展趋势.  相似文献   

排球正面上手发球技术教法研究   总被引：3，自引：0，他引：3  

许明荣  姚小玲 《体育科技》2001,22(1):15-17

在对排球正面上手发球技术教学难点及其成因分析的基础上,对课次与阶段划分、教学顺序、教学时数与练习次数、练习手段作了全面的分析,为完善和丰富正面上手发球技术教学的理论与方法提供了一定的参考依据.  相似文献   

“给他水喝”一类短语的语义特征及其成因探讨     

胡斯可 《荆州师范学院学报》2006,29(2):145-146,207

从读黄伯荣、廖序东先生主编的《〈现代汉语〉教学参考与自学辅导》一书时存在的一点疑问出发，从给予性动词和索取性动词之间的异同来考察，比较、分析给予性动词在三个连续的时间段上分别生成的预设，从中寻找到造成“给他水喝”这类短语的语义特征的内在原因。  相似文献   

古汉语双宾动词与双宾语位置关系初探   总被引：1，自引：0，他引：1  

张先坦 《山西师大学报(社会科学版)》2004,31(1):141-144

古汉语双宾动词与其所带的双宾语的位置有一定的对应关系。我们通过对古文献《左传》、《战国策》、《史记》以及源于其他出处的语料的考查,认为这个观点基本上能成立。其原因主要有动词自身的意义、深层的语义结构关系、时间顺序原则、词性或语用因素的制约等方面。  相似文献   

英语"比较级+than"的用法和注意点     

刘大军 《继续教育研究》2005,(4):129-130

本文就英语语法中连词than的用法，列举了几种常见的容易混淆的现象，并对这几个现象进行了分析研究。  相似文献   

Searching for momentum in NBA triplets of free throws     

Elia Morgulev  Ofer H. Azar  Michael Bar-Eli 《Journal of sports sciences》2020,38(4):390-398

ABSTRACT

The literature on momentum is still undecided, with mixed results whether momentum exists or is only perceived to exist (“hot hand fallacy”). We explore whether momentum exists by looking at cases in which a basketball player has three consecutive free throws. A free throw is a well-defined task executed in a stable environment, allegedly giving momentum optimal chances to occur. Taking 14 NBA seasons we collected over 4500 three-free-throw sets (triplets). We obtained the outcomes of the shots as well as some additional variables about the player and the game: the player’s average free-throw percentage, home or away, and the game score and the quarter when the free throws were attempted. We first analyse the hit rates in the three shots and then proceed to regression analysis that also controls for the abovementioned variables. We address several concerns raised in the literature. All comparisons and analyses yield the same conclusion that there is no evidence for momentum in the data.  相似文献   

用约束原则分析维吾尔语照应语"( )"     

祁玲 《乌鲁木齐成人教育学院学报》2004,12(2):30-31

本文介绍了乔姆斯基的约束原则 ,用约束原则分析了维吾尔语照应语在句子中的作用及约束性  相似文献   

Self-reported symptoms and risk factors for digital ischaemia among international world-class beach volleyball players     

Daan Van De Pol  Sena Alaeikhanehshir  Mario Maas  P. Paul F.M. Kuijer 《Journal of sports sciences》2016,34(12):1141-1147

The prevalence of ischaemia-related symptoms is remarkably high among elite indoor volleyball players. Since the exposure to sport-specific demands may be higher in beach volleyball compared to indoor volleyball, the aim of this study was to assess the prevalence of ischaemia-related symptoms and associated risk factors among world-class beach volleyball players. Therefore, a questionnaire survey was performed among beach volleyball players active during the 2013 Grand Slam Beach Volleyball in the Netherlands. In total, 60 of the 128 beach volleyball players (47%) participated: 26 males and 34 females from 17 countries. The self-reported prevalence of cold or blue or pale digits in the dominant hand during or immediately after practice or competition was 38% (n = 23). Two risk factors were independently associated with symptoms of blue or pale digits: more than 14 years playing volleyball (odds ratio (OR) 4.42, 90% confidence interval (90% CI) 1.30–15.07) and sex (female) (OR 4.62, 90% CI 1.15–18.57). In conclusion, the prevalence of symptoms associated with digital ischaemia is high among international world-class beach volleyball players. Female sex and the length of the volleyball career were independently associated with an increased risk of ischaemia-related symptoms. The high prevalence of these seemingly innocuous symptoms and possible associated risk factors warrant regular monitoring since early detection can potentially prevent thromboembolic complications and irreversible tissue damage.  相似文献   

从序时词语的基准看动意词语的着眼点     

方小燕 《华南师范大学学报(社会科学版)》2003,1(1):65-69

动词本身就具有时量属性,基准可以显现动词时量属性实现的语法,语义的规则。对“动－序组列”格式中动意词语作基准的着眼点的种类的分析,不仅可以揭示着眼点造成的岐义,而且有助于揭示动意词语的非基准用法,这除了说明动作有不同的着眼点外,还充实了起始点逆向漂移的类型,以此增强语用的解释力,更好地指导语言的运用。  相似文献