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   

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   

Setting up and Sustaining Peer Support Systems in a Range of Schools over 20 Years     

Netta Cartwright 《Pastoral Care in Education》2005,23(2):45-50

This article begins by detailing some of the key ideas behind the concept of peers helping peers. The history of peer support schemes in the UK and of the author's particular and important role in this development are explored. The use of Re-Evaluation Counselling in this model is described. She also details the processes of setting up and sustaining peer support schemes in schools. The factors that are key to these processes are identified and exemplified via case studies.  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   

人格变量的性别差异述评   总被引：1，自引：0，他引：1  

赵慧娟  郭永玉 《西南师范大学学报(人文社会科学版)》2005,31(6):69-72

有关性别差异的假设在许多研究报告中都有所呈现。尽管这是一个备受争议的领域，但在过去的几十年里，研究者们还是已经探察了许多人格变量的性别差异。如今，使用元分析技术，心理学家们对于性别差异有了一定的认识。已有的相关研究表明：男性和女性在助人行为、移情、攻击、从众等方面都没有显著的差异，以往研究从效度来说是存在问题的。  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   

东汉草书艺术的演变及其精神内质   总被引：1，自引：0，他引：1  

徐华 《华侨大学学报(哲学社会科学版)》2002,(4):109-116

西汉末至东汉中后期，草书体确立，并由为交流而书写的实用工具升华为一种以审美为最高目标的艺术。这一由实用到审美的演变，不仅标志着中国艺术的观念由非自觉到自觉的飞跃，而且蕴涵了东汉士人精神世界中个体生命意识的自觉和艺术精神的萌生。这一变化，与东汉时期社会思潮的兴替变迁密切相关。  相似文献   

3.11日本大地震后中国中学生共情与助人关系的研究:文化接触的调节作用     

谭树华  王芳  许燕  辛霞  郭璐  杨浩铿 《中国特殊教育》2011,(11)

本研究以2011年春季发生的日本地震和云南地震为背景,对汶川地震灾区和非灾区的中学生对地震受灾民众的态度进行比较,发现:1)汶川地震灾区和非灾区的中学生帮助云南受灾民众的意愿都显著高于帮助日本受灾民众的意愿;2)汶川地震灾区的中学生状态共情的程度和帮助云南受灾民众的意愿都显著高于非灾区的中学生,但二者帮助日本受灾民众的意愿差异不显著;3)对日本文化的接触程度调节共情与助人意愿的关系,对日本文化接触越多,帮助日本受灾民众的可能性越大.  相似文献   

开创具有民族地域特色的广西高校体育教学新模式     

廖柳华 《柳州职业技术学院学报》2007,7(3):150-152

对现阶段广西高校体育教学的现状进行分析,提出具体的对策与建议,以期为今后在广西高校开展民族体育活动提供理论依据.争取开创出具有民族地域特色的广西高校体育教学新模式,促进民族传统体育项目与高校体育教学工作的整体优化,使其得到应有的传承、保护与弘扬,从而让中华民族传统体育得到发扬光大.  相似文献   

高校实施农村扶贫工作探析   总被引：2，自引：0，他引：2  

方锦明  王家骧 《赣南师范学院学报》2004,25(5):98-100

高校实施农村扶贫工作是党中央、国务院的政策要求,也是高校一种特殊的教育实践活动。高校目前的扶贫工作存在一些误区,高校实施农村扶贫工作应把重点放在科技文化、思想精神等各方面。  相似文献