A meta-analysis of maturation-related variation in adolescent boy athletes’ adaptations to short-term resistance training     

Jason Moran  Gavin R. H. Sandercock  Rodrigo Ramírez-Campillo  César Meylan  Jay Collison  Dave A. Parry 《Journal of sports sciences》2017,35(11):1041-1051

This meta-analysis investigated the maturation-related pattern of adaptations to resistance training in boy athletes. We included studies examining the effects of 4–16-week resistance training programmes in healthy boy athletes aged 10–18 years. Pooled estimates of effect size for change in strength across all studies (n = 19) were calculated using the inverse–variance random effects model for meta-analyses. Estimates were also calculated for groups based on likely biological maturity status (“before”, “during” and “after” peak height velocity). Using the standardised mean difference, resistance training increased strength across all groups (effect size = 0.98, [CI: 0.70–1.27]). Strength gains were larger during (1.11 [0.67–1.54]) and after (1.01 [0.56–1.46]) peak height velocity than before (0.5 [?0.06–1.07]). Adaptations to resistance training are greater in adolescent boys during or after peak height velocity. These findings should help coaches to optimise the timing of training programmes that are designed to improve strength in boy athletes.  相似文献   

青奥会与奥运会遗产之比较     

李佳宝  孙葆丽 《南京体育学院学报(社会科学版)》2017,(2):47-52

青奥会和奥运会的东道城市和国家越来越重视通过奥运赛事的承办为其创造"遗产".通过对既有文献资料的研究,进行逻辑分析,结合专家访谈,阐释"奥运遗产"概念的内涵,并从体育参与、社会进步、环境保护、城市建设和经济发展的角度分析青奥会和奥运会遗产的异同并讨论其原因.虽然青奥会与奥运会同属奥林匹克运动体系并一脉相承致使二者在奥运遗产方面有很多相似之处,但二者办赛理念和影响范围的迥异仍然可以体现在奥运遗产中.2007年后,青奥会和奥运会能够实现并存的原因在于各自不同的发展重心.发展的要求和现实的考验是青奥会和奥运会的共同议题,如果奥运会要以世界性大型赛会的社会经济发展的意义来度量"奥运遗产",青奥会就有必要从全球青少年通过体育所搭建的平台实现沟通与理解的角度来框架"奥运遗产"的范畴.区分与辨别所促进对于"奥运遗产"的理解并不是主要目的,面对2022年冬奥会的挑战,通过前期计划和组织影响"奥运遗产"的产生和作用才是当务之急.  相似文献   

竞技体操美的思考与实践     

刘冬 《湖北体育科技》2008,27(1):16-17

通过采用心理学、美学理论及哲学观点,讨论竞技体操美的因素：人体最充分、最自由的展示;青春活力;难、新、稳、美、影响力。研究认为：竞技体操是一项艺术性要求极强的运动项目。美是体操的灵魂,在竞技体操教学训练中应对学生或运动员从心、形、体方面重视美的培养。  相似文献   

我国男排后备队伍年龄、身高、体重及克托莱指数特征分析     

连道明  曾亮 《福建体育科技》2008,27(6):26-27

对参加2008年5月全国青年男排队集训的我国8支重点青年男排队96名运动员年龄、身高、体重及克托莱指数特征进行分析,为我国男排后备队伍选材及训练提供参考。  相似文献   

论刑事被害人二次被害的原因     

蒋仕梅 《湖南科技学院学报》2006,27(6):128-130

刑事被害人遭受犯罪行为侵害后,寻求国家司法救助,却因为司法者的不当行为又一次遭受到不必要的物质耗费和精神损害;生活在被害人周围的亲人、朋友、同事以及新闻媒体等社会舆论错误的反应态度导致被害人心理伤害进一步加剧,从而形成被害人“二次被害”。谊文论述了刑事被害人二次被害的原因,旨在寻求被害人保护的救济途径．  相似文献   

Factors associated with concussion-symptom knowledge and attitudes toward concussion care seeking in a national survey of parents of middle-school children in the US     

Zachary Y.Kerr  Aliza K.Nedimyer  Melissa C.Kay  Avinash Chandran  Paula Gildner  K.Hunter Byrd  Juliet K.Haarbauer-Krupa  Johna K.Register-Mihalik 《运动与健康科学(英文)》2021,10(2):113-121

Background:Developing appropriate concussion prevention and management paradigms in middle school(MS)settings requires understanding parents’general levels of concussion-related knowledge and attitudes.This study examined factors associated with concussion-symptom knowledge and care-seeking attitudes among parents of MS children(aged 10-15 years).Methods:A panel of 1224 randomly selected U.S.residents,aged ≥18 years and identifying as parents of MS children,completed an online questionnaire capturing parental and child characteristics.The parents’concussion-symptom knowledge was measured using 25 questions,with possible answers being“yes”,“maybe”,and“no”.Correct answers earned 2 points,“maybe”answers earned 1 point,and incorrect answers earned 0 point(range:0-50;higher scores=better knowledge).Concussion care-seeking attitudes were also collected using five 7-point scale items(range:5-35;higher scores=more positive attitudes).Multivariable ordinal logistic regression models identified predictors of higher scores.Models met proportional odds assumptions.Adjusted odds ratios(aORs)with 95%confidence intervals(95%CIs)(excluding 1.00)were deemed statistically significant.Results:Median scores were 39(interquartile range:32-44)for symptom knowledge and 32(interquartile range:28-35)for care-seeking attitude.In multivariable models,odds of better symptom knowledge were higher in women vs.men(aOR=2.28;95%CI:1.71-3.05),white/non-Hispanics vs.other racial or ethnic groups(aOR=1.88;95%CI:1.42-2.49),higher parental age(10-year-increase aOR=1.47;95%CI:1.26-1.71),and greater competitiveness(10%-scale-increase aOR=1.24;95%CI:1.13-1.36).Odds of more positive care-seeking attitudes were higher in white/non-Hispanics vs.other racial or ethnic groups(aOR=1.45;95%CI:1.06-1.99)and in older parental age(10-year-increase aOR=1.24;95%CI:1.05-1.47).Conclusion:Characteristics of middle school children’s parents(e.g.,sex,race or ethnicity,age)are associated with their concussion-symptom knowledge and care-seeking attitudes.Parents’variations in concussion knowledge and attitudes warrant tailored concussion education and prevention.  相似文献   

大学教改与大学教材——以中文专业几部教材为例     

李仕春 《成都教育学院学报》2010,24(9):85-87

文章从文字编辑、论述是否全面、编者表述等几个方面具体分析了《文学理论教程（修订二版）》中存在的问题,希望编者再进行修改时,予以考虑。在此基础上,文章又兼谈了其他几部中文专业教材存在的问题,希望大学教师在为学生选教材时要慎之又慎。  相似文献   

Improve the China Youth Volunteer Associations with the Help of Comparative Research on EU Experience     

刘阳 《海外英语》2012,(10):282-283,285

As a volunteer organization,NGO plays an important role nowadays for its unique social functions.In recent years,Chinese Young Volunteers Associations have made great progress,but compared with the EU countries,there is still a significant gap.This paper in cludes the result of the comparative researches on two aspects: Volunteer associations;Training systems.From the result,a relatively compre hensive reference can be provided for the development of the Chinese Youth Volunteers Associations.  相似文献   

合理使用与许可使用的异同及适用     

刘志刚 《图书馆建设》2005,(5):1-4

版权法自产生之初,就在对版权是保护还是限制这个问题上陷入两难境地。一方面要鼓励和保护优秀作品的创作与传播;另一方面必须出于对社会公共利益的兼顾而对版权人权利加以限制。总的来看,这种限制主要包括合理使用和许可使用两个方面。  相似文献   

论数字图书馆著作权问题的解决   总被引：6，自引：0，他引：6  

丁旭芳 《图书馆建设》2005,(6):29-31,34

文章分析了数字图书馆建设中所面临的著作权问题,指出以合理使用方式解决数字图书馆著作权问题是不合理的,建议以法定许可使用方式解决数字图书馆著作权问题,并就数字图书馆法定许可使用的具体制度内容进行了讨论。  相似文献